EFI recommendation
 

I am looking for some recommendations as to which EFI people prefer. My father has a 67 Firebird with a 455 estimated at 500 hp, and wants to swap it to EFI. I am currently in Kuwait on deployment and would like to get everything ordered so when I get home I can install everything. I've been doing a little research but the internet available to us leaves a little to be desired.

Any info would be helpful. Thanks!

Mitch

First - Thank you for your service to our country!

I've used all the aftermarket and OEM EFI systems through the years, and currently, the HP or Dominator Holley systems (port not throttle-body) seem to provide the best 'bang-for-the-buck' in terms of ease of calibration and results.

I've had great results with many if not all the systems available (and given an unlimited budget I am partial to MoTeC) - but since you made no indication of budget or experience, I'll stick with the Holley recommendation.

Good luck with your project - will be a fun one for you and your dad!

Dave

Thanks for the reply Dave! I should have specified that I will probably be going for a throttle body style, my father wants it to look carbureted, hide as much as possible

I have a friend that put the terminator holley setup on his 496" motor in a 70 SS chevelle. He's pretty happy with the results and it is at or just above the power you're looking for.

Since you have a Pontiac you have easy access to EFI ready intakes. I realize you already have an intake on it but MPI vs TBI offers better drivability and overall running quality. And sometimes for not a lot more $$$.
Thanks.

I agree that it is a better idea to go mpi, but ultimately it's my father's car and he wants it to look like its carbureted as much as possible. I will keep trying to get him to switch but in the end it's still his car! Thanks for all the replies though, Holley has gotten good marks on multiple forums.

Check out FiTech. Simplicity at its best and easy on the wallet.

Fast EFI

I agree with what Dave said - for retrofit EFI, we've had a lot of success with the Holley HP setups. Holley Dominator adds a lot of cool options that probably aren't relevant to you. The programmable FAST multi-port works well also.

If you're going with a 4 bbl throttle body style, I'd suggest the Holley Terminator. Most 4bbl style EFI setups are "self-tuning", which sounds great in theory and sometimes works out horribly in practice. Over the last 3 years, we've swapped out at least half a dozen of these systems (usually FAST or MSD) for customers who came in with poorly running cars asking if we could "tune" their self-tuning EFI. Unfortunately, the answer is always no - except for the Holley Terminator, which is upgradeable to full computer programmability. It's great to have that option as a backup if things don't go your way.

Thanks to everyone for the replies! Keep the opinions coming, I have some time before I need to order and I like making educated decisions.


Would you mind letting me know why you prefer it to others? Installation ease, less problematic, more options...?

Holley's Terminator EFI is an excellent choice. I've installed quite a few in configurations as you mentioned and they're a very versatile combination. Since it uses Holley's HP ECU it offers the ability to be programmed from the basic handheld device or more advanced tuning from the laptop software.

Efi
 

This is great information as I want to switch my 69 SS Camaro to EFI and want to know which one to go with. I do currently have a Pro Flo that I can't decide if I want to install only to find that there are better systems out there for less money. The Pro Flo looks pretty complicated for me.

I see Holly just came out with the "Sniper" EFI, has anybody heard anything on this? For $1000 I would suspect poor results but you never know.

Holley. had my terminator for 3 years no problems whatsoever and good customer support.

FiTech HANDS DOWN!!! I have it on my built 360 sbc, and even with a cam with 30 degrees of overlap, it drives like never before. Great price, easy install, and self learning.

Hello,
I have a 1969 Camaro with a Shafiroff 540 Ultra Street Edition. I currently have the FAST 2.0 Sportman system on the car and am in the process of switching over to the Holley system with multiport and injector dynamics injectors. I am looking forward to the results. I have not been a fan of the FAST system so far. I know alot of this has to do with tuning. In my area, I'm not aware of anyone who tunes with FAST, yet many folks are tuning with the Holley set-up. This is something that you may want to keep in mind when you need help dyno tuning the car. I am also switching to the Vaporworx returnless set-up and removing my ricks tank with Aeromotive A1000. The vaporworx system uses a fuel pump controller to throttle the fuel pump, along with a CTSV pump.

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