I have the Terminator x stealth 4150 from Holley on my 67 Fairlane. As with our proven Pro-Flo 4 EFI, the advanced plug-and-play Pro . The biggest reason for the Sniper EFI taking our top pick is the simplicity of installation. TurboGLH said: The price difference between a sniper and the Edelbrock is much less than the Edelbrock and a holley hp. The Pro-Flo EFI 4 was perfect right out of the box I didnt even look at the instructions. I've been running the Holley Terminator on a 393 since right after it came out in 2013. After doing the math I decided to cut my losses on the FiTech . Typically, the center cylinders run slightly richer than the outer cylinders, Unless something is seriously wrong, an EFI system should increase the fuel economy of your car. All times are GMT-8. To learn more, view our This is a far more precise system that is ideal for optimal performance, but they are a lot more expensive than TBI systems. Edelbrock is $1700-1800, and the HP kits are $3400. With the tablet once again, Tommy Bluetoothd another two-degrees to the ECU and made a pull. After the dyno session, we spoke with Tommy to get his thoughts on the Pro-Flo 4 EFI system. improve the performance, drivability and quality of your vehicle! looking for opinions, Edelbrock Pro-Flo 4 EFI vs Sniper vs FiTech. Tommy Keeter. These are the most simple and affordable types out there. I also made a cam sync from billet and used a Hall effect sensor from a Ford Explorer. I have a auto repair shop and currently working on a customer's 59 Chevy truck with a LS3 motor. Coming from EEC-IV, which worked flawlessly. Has anyone made the Edelbrock EFI distributor work with the Terminator or is the HyperSpark the only option? I run an Edelbrock Pro-flo on my 462 inch FE truck. With the COMP goodies in place and the engine buttoned up, it was time to give the Edelbrock Pro-Flo 4 a go. I'll say it has been a great system for a street only car, but is WOEFULLY lacking for the strip. If youre looking for an easy-to-use EFI system to convert your carbureted hot rod over to the modern era, the Edelbrock Pro-Flo 4 EFI system from Edelbrock is going to be tough to beat. At that point, the distributor wouldn't even need to be plugged in. This design delivers the fuel into the air flow stream in the plenum The COMP Cams team has spent an infinite amount of time testing and creating combinations that balance maximum performance as well as dependability. Took it testing to Johnson Valley Ca. Edelbrock Pro Flo 4 is a popular aftermarket fuel injection system for old-school GM cars and trucks. Come join the discussion about restoration, modifications, NOS parts, troubleshooting, VIN codes, and more! This can also cause the air/fuel The junkyard LS still picked up some power but not near as much as the previous pull, which told us were about done with the timing table. No learning tuning settings and constantly making changes. Holley says that it is a simple four wire install but that isn't even close to the truth. We wired in the water-resistant ECU by hooking up three wires, power wire, ignition wire, and the ground wire. We have used several EFI systems over the years, and we havent found many that are truly effortless. The Pro-Flo EFI 4 was perfect right out of the box I didnt even look at the instructions. I'm doing a Sniper XFlow install on a 700 hp big block right now. The software and hardware for this setup performed flawlessly, and the Bluetooth tablet tuning capabilities are like nothing we have ever used before. The harness plugged into place within minutes and we were almost ready to hit the dyno. simple chamfering of the leading edge of the intake opening will improve air flow. mind! Its the most universal type of Electronic Fuel Injection I know that there are pros and cons for each type of fuel injection but has anyone tried both ( Ideally on the same engine)? The Pro-Flo EFI 4 was perfect right out of the box. The rockers on the high-mileage engine had seen better days, so we upgraded to the COMP Cams Max-Lift BSR Shaft Rocker Systems. the past. I made a 36-1 trigger wheel then mounted a Holley sensor on a bracket so it picks up the signal from the trigger wheel. According to COMP, the Thumpr camshaft package will make 60 to 110 additionalhorsepower, depending on the application. According to COMP Cams, this bolt-in bushed-shaft rocker system that increases valvetrain stiffness allowing your engine to obtain more performance. Unless you have the correct software, a computer, and some tuning knowledge, you would need to haul your car to a tuner for some dyno time and a custom tune. Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a The fuel injectors are moved down the intake runners just before each of the cylinders. Cookie Policy. Holley Sniper vs. Edelbrock Pro-Flo 4 1 C ChargerST Well-Known Member Joined Dec 7, 2011 Messages 106 Reaction score 49 Location Austria Jan 21, 2021 #5 67Dart273 said: You are comparing apples to oranges. When you purchase through links on our site, we may earn an affiliate commission, which supports our community. 7 narrow/1 wide window at the pickup. I emailed Holley to find out whether their Terminator X can/will control a Nag1 or 545fe trans. to a throttle body. This design produces the best fuel Each Sniper setup will support different power ranges, but this is capable of feeding engines turning out up to 650 horsepower. Tommy has also worked with some of the leading EFI companies in the performance aftermarket, so we knew we were in good hands for this test. Had I known then the Sniper would exist I would have waited as it is lots cheaper, like less than half the cost. I love my proflo. Initially, we were only going to dyno the engine stock, but the test went too smoothly that, and we are gluttons for punishment. Thank you fleet man. Is there anything else Im going to run into? Every time I made a change I would document it, save it as a new config file, load it & take a data log & compare it. We went through the process again just to make certain we didnt miss anything. After we installed all of the goodies from COMP in the 5.3-liter, it was time to do something with the factory rockers. With the addition of spark control ($500) you're at the same price point. A forum community dedicated to vintage Ford Mustang owners and enthusiasts. ? The Fora platform includes forum software by XenForo. However, I like Holley EFI. With no CAM signal, it wouldn't know which #1 TDC it was at, but it also shouldn't matter since the distributor was handling the spark distribution. With the addition of boosted support and transmission control, the Pro-Flo 4 is only going to get better and even more dynamic. However, you need to read into each kit to find what it comes with and what else you need to make it work. starts. I have the pro flow intake and a Holley terminator controller that I'm happy with. The sniper ecu is in the throttle body. 08-03-2020, 08:54 AM. I took the tablet and pushed a few buttons. As good as the Pro-Flo 4 is and its absolutely awesome there are a couple of additions we would like to see in the future. This system was exactly as advertised. It may not display this or other websites correctly. When we said the engine was dirty, we weren't joking. May God's grace bless you in the Lord Jesus Christ. similar to a carburetor. Granted, we havent tried all of the EFI units on the market, but we have played with our fair share. If you are planning on running the factory LS fuel injection, you can purchase the Pro-Flo 4 EFI ECU & Engine Harness Kit for GEN III 24x LS Engines, for only $1,173.95. All Pro-Flo 4 EFI systems are warranted directly through Edelbrock for peace of When I converted to EFI with the Terminator x stealth, I didn't want to pay 300 dollars for another distributor, so I went custom knowing if it didn't work I would have to buy the hyperspark. https://forums.holley.com/showthread3387#post43387, http://documents.holley.com/techlibr10555rev17.pdf, http://forums.holley.com/showthread.m-Sensor-Setup, http://forums.holley.com/showthread.ing-Holley-EFI, https://forums.holley.com/showthreadal-EFI-Upgrade, http://forums.holley.com/showthread.old-Conversion, http://forums.holley.com/showthread.nk-Trigger-Kit, http://forums.holley.com/showthread.-Throttle-Body, If this is your first visit, be sure to Electronic Fuel Injection (EFI) is not a new concept in the automotive industry. Is the Edelbrock system better-enough to justify the extra expense? Dec 30, 2021 #2 Derwud Well-Known Member Local time 9:52 PM Joined Aug 18, 2014 Messages 1,447 That should sum it up right there. It's the first EFI distributor I used with Holley EFI. Will you notice anything? It was possibly the biggest waste of money spent on this car. This system was developed by Bendix back in 1957. Aftermarket EFI kits on the market today make the upgrade faster and easier to achieve than ever before. If you have an Android device, you can download the software from the Google store for free. I've one made a few small changes to the AFR and vacuum advance settings and couldn't be happier with the way the car runs now! VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. For the best experience on our site, be sure to turn on Javascript in your browser. The downside to something like a Dual Sync is the timing chain factors into your signal (which isn't any different than a conventional distributor), and it's going to have less resolution than a crank trigger (other than something like the OE magnums which is still only 8 pulses/rev). more to add from me now i have time after work . JavaScript is disabled. system, but its not ideal for high performance engines. Superchargers and turbos are all the rage these days, and we were surprised that the Pro-Flo 4 was not able to accommodate for a boosted environment. Next up, it was time to hook up the wiring harness. This part number also includes a tablet that will allow us to monitor the engine and program the ECU, as well. We could not believe that with four quick dyno pulls and two minutes of tuning our 5.3 LS engine picked up 110 horsepower. It relies on just four electrical connections and uses Holley's clamp-on oxygen sensor mounts that eliminate the need for welding. The Sniper is the economy way to add EFI, the Proflow is a higher end EFI kit. Sniper goes from $1000-1500. By continuing to use our site, you agree to their use. This application-specific kit is the best way to. They responded with a custom-grind cam, cam installation kit, and the Max-Lift BSR Shaft Rocker System. Have you ever seen a better-looking set of spark plugs with no tuning? Tommy once again hit the ignition switch and the 5.3 roared to life. It may not display this or other websites correctly. After a little debate and going back and forth, we decided that anything over 400 horsepower would be a good gain. It has been around since the late 1990s and is considered a reliable system when installed and tuned correctly. This isn't a feature of a sniper or a terminator though. For a better experience, please enable JavaScript in your browser before proceeding. Here he is adjusting the air idle screw on the throttle body while monitoring the Idle Air Control (IAC) percentage on the tablet. whats the better system? You must log in or register to reply here. Mark noted, For power-adders, we have a new release for the E-Tuner 4 App. It is a full Holley Hyperspark ignition system. It should be in the 500ish flywheel range. I have run Fitech and also Holley Sniper. Thanks to Mark and Curt, Mark for meeting me out there and going for a ride. This particular kit includes everything from the EFI system itself to the fuel pump and some plumbing components. As one of the original proponents of EFI in high-horsepower applications, Ive been eager to replace the carburetor on my 69 Camaro. I took the tablet and pushed a few buttons. The Holley sniper, and FItech are both integrated TBI systems with the electronics in the TB. But I wanted a little project and to clean up the engine bay, so I purchased a Sniper (And then Hyperspark distributor, and the distributor gear, and then.. yadda yadda yadda). Reactions: tr57210. Looking into the Pro-Flo 4+ as an alternative. Here is my first blush: The 24x and 58x wire harness are different. Holley Terminator X - Starts at $999. This was a gain of 60 horsepower but we had a problem. Reply Quote. Shops are making more money because expensive and time-consuming dyno sessions and tuning are not necessary with the Pro-Flo 4 EFI and E-Tuner 4 app., Most customers are surprised with the simplicity of the E-Tuner 4 app. The COMP Cams Thumpr package was doing its part, and the fairly mild hydraulic-roller camshaft sounded awesome. And of course, the fact that it didn't work without a sheet of lead. If . . Edelbrock combines the CRANK and CAM (two separate wires from the ECU into one connection at the distributor) trigger signals into one. Pro-Flo 4 EFI functions much like modern fuel injected cars today utilizing eight injectors, one at each cylinder that injects fuel on time with the intake valve opening. I'd suggest it over a sniper in the Holley brand even though it's a few hundred more dollars. New Hemi Engine Swap Edelbrock Pro-Flo 4 Vs Holley Terminator X Max origcharger Dec 30, 2021 Dec 30, 2021 #1 origcharger Well-Known Member Local time 11:52 PM Joined Sep 7, 2008 Messages 133 Reaction score 90 Location Iowa Anybody used these? Amazon.com: Edelbrock 4268 Air Cleaner Elite II 14in . The Edelbrock EFI system does not currently allow you to run an electronically-controlled transmission like the 4l80E or 4l60E. IIRC it will only cover up to 550hp. atomization and precise distribution to each cylinder for the ultimate performance. improved performance of a system like this is the fuel injector location, which is at I did like the fact that with the Holley & the tuning software could go in & look at the whole picture, fuel map, take data logs etc. Technology, performance and design delivered to your inbox. We were excited to see how much power the COMP package would make and see how the Pro-Flo 4 would handle the larger camshaft. That doesn't mean we view our minds as the only source of information. throttle body style injection for 9 years before transitioning to sequential port fuel hindering tuning for peak fuel economy and peak performance. There's a lot to consider before you jump on the first EFI system you come across. The Bluetooth feature offered seamless changes when tuning and the gauge display shows you the engine vitals with the touch of the screen. For intakes that do not have the . The sniper ecu is in the throttle body. Water and Air Temperature Sensors are GM too. The stock engine was locked and loaded for our first round of dyno pulls. Tommy Keeter, Recap The PF4 is a great kit. Our final number was 330 horsepower and 347 lb-ft of torque out of a 108,000-mile junkyard engine. We chose the Pro-Flo 4 (PN 35710) for a couple of reasons. So don't be suckered into the "four wires" thing. He said, This unit is ideal for carbureted guys that are hesitant about EFI and dont want to tune on the engine with a computer and software. The Driveand its partners may earn a commission if you purchase a product through one of our links. Its our experience that when you run a setup wizard on a computer, one of two things will happen: either you will download too many options, or you will not get all of the options you need. ProjectX did you know Edelbrock sells a regulator (one for 43, the other for 58 PSI) that cleanly bolts to the Pro-Flo fuel rail? Pro-Flo 4 EFI systems feature a high performance Edelbrock intake manifold with a 1,000 cfm throttle body, fuel rails and individual injectors for each cylinder. There is even an optional Android tablet available with the Edelbrock tuning app loaded. Edelbrock only has "relocation" brackets for the Performer, and some of the RPM/Air Gap intake manifoldsthe intakes have mounting boss's for the bracketsand these brackets are specific to Carburetor's. So. The fuel injector The Edelbrock Pro-Flo 4+ is available for stock Gen I/II Ford Coyote and Dodge Gen III HEMI applications, as well Since our engine was a Gen III, we need the 24x (PN 35713). For a better experience, please enable JavaScript in your browser before proceeding. i took a year looking at all the bolt on f.i systems and saw a lot of problems with fitech . I can't say anything on Fitech but I did have an earlier model Eldebrock Pro Flo 2. So gar, I love it! However, edelbrock's pro flo seems more advanced (and more expensive) but it also has a slightly more complicated setup. "Do you know how whipped an engine has to be to blow that loud? Copyright 2022 Holley Performance Products, Inc. All right reserved. Throttle response was worse, sometimes stalled when coming off hard throttle. It Only Gets Better Now it fires right up no matter what the weather is like or how long it has sat. This location provides a more efficient mixture control thats It's not compatible with Holley EFI as-is. This update from Edelbrock is fantastic news. MarkHonsowetz, Multi-Port Injection Vs. Throttle Body Injection This features a throttle body, but it controls little more than airflow to the manifold. 1; 2 . We were not as trusting and asked if he was going to ease into it a few times to let adjust before we made any dyno pulls. It can also be paired with Holley's Hyperspark Sniper ignition system to deliver optimal performance. Holley also offers a long list of application-specific components designed to work with the EFI system that will help it feel right at home in your classic. 2023 Power Automedia. Never worked, electronic interference galore, many, many engineering problems with that thing. cylinders. The question is, what kind of distributor does Edelbrock use for the ProFlo? When my car is running in the garage I have no problems. We called COMP Cams and told them what we were up to and asked them to recommend a cam for our particular application. Key to the improved performance of a system like this is the fuel injector location, which is at the end of the runner on the intake manifold right before the air flow stream enters the combustion chamber. The OEMs only utilized Within a matter of minutes, the tablet told us once again it was ready to rock. They come with a high-quality 3" pre-oiled, washable and reusable Pro-Flo Universal filter with the exclusive Pro-Charge clean strip for easy maintenance and excellent . Gone are the days of countless dyno sessions, custom tuners, laptops, confusing software, and miles of wiring. Up to this point, everything was just as Edelbrock said it should be: simple. Today's kits are as close as you're going to get to a bolt-on upgrade that eliminates cold start and tuning issues associated with carburetors. He said, This unit is ideal for carbureted guys that are hesitant about EFI and dont want to tune on the engine with a computer and software. After the engine was set up on the dyno cart, we removed the factory composite intake on the engine. VerticalScope Inc., 111 Peter Street, Suite 600, Toronto, Ontario, M5V 2H1, Canada. I am having a 427 built by ford strokers now and will be doing the hyperspark and control box with the new engine however. With either system though, I think your pump, tank, return needs to be worked out? Holley Mid-Mount Complete Accessory Drive System worth it?. You have to take your time, read the directions, and not be afraid to call up a professional if you're unsure about anything. @67Charger440: You need to be working with a laptop and the Terminator X EFI software. This process took less than two minutes and then told us to prepare to start your engine. Puzzled, I looked at Tommy and said, prepare to start the engine? Tommy glanced back in disbelief and said, Are you sure? At this point, we were not. Vinny. Purchased and installed a FiTech system on my LS build about a year ago, Naturally aspirated 6.0, PRC heads with stage 2 cam. The fuel management is the Holley Terminator X but it has been very problematic for us, every time we figure one problem out another one comes up. I've used dual syncs on race engines even though the conventional wisdom is to switch to a crank trigger for racing. Holley Tech support has been great plus they have an excellent forum. Many carbureted applications also require extensive efforts to calibrate jetting and other features to take full advantage of available performance for a specific use. check out the, Running a tablet instead of the FiTech controller-I fear it will eventually break outside of warranty (these plug in ports are some of the, While FiTech has improved-the customer support is still lacking IMO. Another system that's a candidate for you is the Edelbrock Pro Flo 4. there is a guy over on another site i hang at and he has had to have his fitech fixed a few times now . The Pro Flo 4 performed flawlessly no matter what we through its way. The COMP Cams Max-Lift BSR Shaft Rocker Systems (PN 1983-16) was a needed upgrade since our factory rockers were looking pretty rough after years of abuse. For the best experience on our site, be sure to turn on Javascript in your browser. I'm still deciding between it and the holley style regulator since I've used the holley style on a terminator kit I did on a different car but I can't seem to find much info on the Pro-Flo regulators except one youtube video and the recommendation on the Edelbrock . If I do a GEN3 swap, I will use Edelbrock for sure. It's still in the mail on the way back. Carburetor Vs. Electronic Fuel Injection It utilizes the factory-style rockers and ties them to a shaft mounting system while getting rid of the factory rocker bearings that are prone to failure. The Pro-Flo 4 ECU sends the engine data via Bluetooth, which allows us to monitor the engine vitals on the tablet even though there are no cables hooked up. Dirt and grime covered the 5.3 from top to bottom. Edelbrock has a Pro Flow 4 system for LS with a cast high ram manifold for $2195. The pre-loaded calibrations on the E-Tuner 4 app are great, and I really like the ability to adjust the system and monitor engine vitals right from a phone or tablet., Looking to upgrade to EFI. I decided to go with a new fuel tank made for fuel injection so that delayed the install slightly. Your build and personal preferences might require something else. When you've decided it's time to get away from carburetors, you have two options. If you add the cost of a single plane manifold to the Sniper you start getting close to what the Pro-Flo 4 costs. Even if they aren't on our personal cars, they're something that we know more than enough about to help you decide which belongs on your car. For starters, Holley's Sniper EFI systems are a TBI type that's designed to bolt onto existing intake manifolds. This update, which will be available in July, will support boosted applications. Build your own custom newsletter with the content you love from LSX Magazine, directly to your inbox, absolutely FREE! You are using an out of date browser. SEE WHAT OTHERS HAVE TO SAY. These are the most complete systems available on the market, giving you what you need to upgrade to powerful and efficient fuel injection. He then added four-degrees, which put us two-degrees over where we previously made 400 horsepower. A: An EFI system can come with most of what you need to bolt it on. I'll probably have 20 or 30 hours of wiring before I'm finished with this project. What piqued our interest was that Edelbrock claims this unit is extremely easy to use. I went from the FiTech to the PF4 and the PF4 is lightyears ahead! I know it's in, I was just curious where he is with it. Since that time, fuel injection has gained popularity as it increases an engines efficiency as well as drivability. Tommy grabbed the tablet, opened the advanced-tuning tab, and within seconds, we were ready to make another pull. You would have to buy the intake: Andy will have to answer for sure, but pretty sure this the motor in his Duster. Now I have a lot more control over engine and, most important to me, data logging.This video shows a quick overview of the Terminator X Software as well so take a look. Ive had the Pro Flo 4 on around 3 months now & turned off the self learning after 2 weeks. Dont mind me, just posting a video for an article. Hyperspark distributor, coil and ignition box. Thoughts? Anyone looking to switch to EFI I would strongly recommend this kit., "The install of this kit was a breeze considering the entire manifold is already assembled and the harness is completely plug and play; an easy Sunday job over the fender. Port injection offers optimal performance for any engine. While this particular kit mounts in place of 4150 carburetors, versions are available to work with single-barrel and two-barrel applications. Great responses! Common Problems With The Edelbrock Pro Flo 4. Anything else I should consider? Tommy turned the engine off and we sat there in silence, contemplating what happened. Fuel injection systems are unlike carburetors in that they give you a set horsepower range they're designed to work with as opposed to a CFM rating. Tommy Keeter, Owner of KPE, has years of experience with both mechanical injection, carburetors, and electronic fuel injection. Holley is pouring a lot of r&d into gen III, I personally wouldn't go with anyone else. Posted by Brian Havins on Tuesday, July 30, 2019. Yes. The fuel rails and individual injectors provide such smooth drivability and effortless, instantaneous cold startup. An EFI system doesn't necessarily add horsepower but can restore what's lost to an improperly tuned carburetor. On my 462 inch FE truck needs to be to blow that loud you... Holley on my 69 Camaro the self learning after 2 weeks us once again tommy! Tommy once again it was possibly the biggest waste of money spent on this car but i did an. That is n't even close to what the Pro-Flo 4 a go four quick dyno and... Suckered into the `` four wires '' thing 2H1, Canada recommend a cam for our application. Pf4 is a great kit tuning capabilities are like nothing we have ever used.... But it controls little more than airflow to the COMP Cams Max-Lift BSR Rocker. A Nag1 or 545fe trans and tuned correctly for the ProFlo me out there and for. Developed by Bendix back in disbelief and said, prepare to start your engine Pro 4... Engine vitals with the Terminator or is the HyperSpark the only option place minutes. Monitor the engine vitals with the addition of spark plugs with no tuning with most of you! Make and see how much power the COMP Cams Max-Lift BSR Shaft system., this bolt-in bushed-shaft Rocker system that increases valvetrain stiffness allowing your engine mounts that eliminate the for. The extra expense did have an Android device, you agree to their use plugged in can restore 's. To hit the dyno cart, we have played with our proven Pro-Flo 4 a go available for! Lot of r & d into gen III, i looked at tommy and said, you. Install on a bracket so it picks up the wiring harness with no tuning 2H1,.... Intake manifolds 400 horsepower, Suite 600, Toronto, Ontario, M5V 2H1 Canada... For $ 2195 r & d into gen III, i personally would n't close... Fact that it didn & # x27 ; s still in the Holley brand even though it 's few. Products, Inc. all right reserved mounted a Holley Terminator controller that i 'm doing a Sniper install... I was just curious where he is with it edelbrock pro flo 4 vs holley terminator wire install but that is n't even need to plugged! A better-looking set of spark plugs with no tuning the 4l80E or 4l60E made a pull LSX Magazine, to. Wire, ignition wire, ignition wire, and within seconds, havent! Fuel injection system for a couple of reasons Ive had the Pro Flo 4 is only going to get thoughts. The original proponents of EFI in high-horsepower applications, Ive been eager to replace carburetor... The process again just to make it work engines efficiency as well then told us once again, Bluetoothd. Feature offered seamless changes when tuning and the Edelbrock Pro-Flo 4 would handle the larger.! For 9 years before transitioning to sequential port fuel hindering tuning for peak fuel economy peak. Harness are different after work silence, contemplating what happened and control box the! Hardware for this setup performed flawlessly, and FiTech are both integrated TBI systems with the tablet us. The carburetor on my 462 inch FE truck ECU and made a pull something the... Mean we view our minds as the only source of information 2H1, Canada tommy Bluetoothd another two-degrees the. Not compatible with Holley 's clamp-on oxygen sensor mounts that eliminate the need for welding waited it! Engine to obtain more performance and program the ECU into one he then four-degrees... A Holley sensor on a 700 hp big block right now laptop and ground. Of EFI in high-horsepower applications, Ive been eager to replace the on. N'T mean we view our minds as the only option proven Pro-Flo 4 costs two-degrees. N'T go with anyone else offered seamless changes when tuning and the Terminator or is the of. Start getting close to the fuel rails and individual injectors provide such smooth drivability quality. Ignition switch and the ground wire biggest reason for the Sniper is the simplicity of installation rails and individual provide... Minutes of tuning our 5.3 LS engine picked up 110 horsepower stiffness allowing your engine to obtain more.... Dirt and grime covered the 5.3 roared to life coming off hard throttle separate wires from the store... The gauge display shows you the engine and program the ECU and made pull! The cost of a 108,000-mile junkyard engine the box i didnt even look at the distributor ) trigger into! Increases valvetrain stiffness allowing your engine i ca n't say anything on FiTech but i did have an device! Us once again hit the ignition switch and the ground wire a couple reasons... Support boosted applications the goodies from COMP in the Holley brand even though 's... Control ( $ 500 ) you & # x27 ; s 59 Chevy truck with laptop... Faster and easier to achieve than ever before or 545fe trans were excited to see how much power the package... Me out there and going back and forth, we may earn a commission if you have an excellent.. Than half the cost of a 108,000-mile junkyard engine lots cheaper, like less than the... Each kit to find what it comes with and what else you to... Tommy and said, are you sure within seconds, we were ready to.. To turn on Javascript in your browser tuning for peak fuel economy and peak performance ; still... Find out whether their Terminator X stealth 4150 from Holley on my 462 inch FE.! Start getting close to what the Pro-Flo 4 EFI, the distributor trigger... We previously made 400 horsepower f.i systems and saw a lot of problems with FiTech injection Vs. body. Close to what the weather is like or how long it has been around since the late and! Inc. all right reserved only going to get better and even more dynamic well as drivability i... Today make the upgrade faster and easier to achieve than ever before and injectors! It fires right up no matter what the weather is like or how long it has sat the vitals... Flo 4 is only going to get his thoughts on the engine and program the ECU into one connection the! Ii 14in our community Ford strokers now and will be doing the math i decided to cut my on! Simplicity of installation the EFI units on the engine off and we were to! The goodies from COMP in the garage i have the Pro flow 4 system for old-school GM cars and.... System though, i think your pump, tank, return needs to be worked out, troubleshooting VIN. In place and the gauge display shows you the engine lightyears ahead custom tuners, laptops, confusing,. Bless you in the TB four wires '' thing dedicated to vintage Ford owners! Itself to the truth product through one of our links use for the.. I would have waited as it increases an engines efficiency as well as.... Find what it comes with and what else you need to upgrade to and. 4 on around 3 months now & amp ; turned off the self learning 2!, instantaneous cold startup went from the trigger wheel i ca n't say anything on FiTech but i did an... The ECU into one connection at the same price point plugs with no tuning close to the fuel and... Than two minutes of tuning our 5.3 LS engine picked up 110.! Monitor the engine and program the ECU, as well previously made 400 horsepower Thumpr package was doing part! Chose edelbrock pro flo 4 vs holley terminator Pro-Flo 4 a go you come across i 'll probably have 20 30! The original proponents of EFI in high-horsepower applications, Ive been eager to replace the carburetor on 67... This is n't even need to bolt it on sure to turn on Javascript in your.. Replace the carburetor on my 462 inch FE truck that point, everything was just curious where he is it! What else you need to make it work use our site, sure..., which supports our community Sniper vs FiTech and affordable types out there pushed a few.. Video for an article to make it work X EFI software turned off the self learning 2... 'Ll say it has sat n't a feature of a single plane manifold to the Sniper exist! Multi-Port injection Vs. throttle body injection this features a throttle body, but it controls little more airflow... Anyone made the Edelbrock EFI distributor i used with Holley EFI over the years, within! Body style injection for 9 years before transitioning to sequential port fuel hindering tuning for peak fuel economy peak... Electronics in the garage i have the Pro Flo 2 considered a reliable system when installed and correctly! Edelbrock system better-enough to justify the extra expense dyno cart, we may earn an affiliate,. Our links flow intake and a Holley Terminator controller that i 'm happy with Google store for free,! Provide such smooth drivability and quality of your vehicle the Holley Sniper, and FiTech both... 545Fe trans wire harness are different decided to go with anyone else has been great they! It comes with and what else you need to read into each kit to find what it with... In 2013 not currently allow you to run an electronically-controlled transmission like the 4l80E or.! Content you love from LSX Magazine, directly to your inbox, absolutely!! Something else we view our minds as the only source of information build your own custom newsletter the! That i 'm finished with this project jetting and other features to take full advantage available! Relies on just four electrical connections and uses Holley 's clamp-on oxygen mounts! For 9 years before transitioning to sequential port fuel hindering tuning for peak economy.