Holley "bolt on" EFI...
#1
Holley "bolt on" EFI...
I have been doing some research recently on these "bolt on and go" EFI set ups that Holley is offering, after i saw the ad during the powerblock on spike. I have been wrestling with the choice between one of these units and swaping a 5.0 engine. With that, if I go with the 5.0l I was planning to add the T-5 also. It will be more economical on paper to bolt on the efi, but what kind of power/milage are the producing?
So i was wondering if anyone here had any experience with them and if anyone had any personal info on them? thanks in advance!
Here is a link to the holley site...
http://www.holley.com/550-400.asp
So i was wondering if anyone here had any experience with them and if anyone had any personal info on them? thanks in advance!
Here is a link to the holley site...
http://www.holley.com/550-400.asp
#2
I am going to be running the professional products efi on my 68. I have done a lot of research and so far it looks like the best bang for your buck.
http://www.professional-products.com/EFI_3.php
http://www.professional-products.com/EFI_3.php
#3
I am going to be running the professional products efi on my 68. I have done a lot of research and so far it looks like the best bang for your buck.
http://www.professional-products.com/EFI_3.php
http://www.professional-products.com/EFI_3.php
#6
I've been on the fence between the Powerjection III (returnless style) and the new Atomic EFI by MSD. At Summit, they are priced nearly the same. The major differences seem to by 80lb injectors, 525HP rating, included fule line and calibration module for the polished Atomic. 62lb injectors and 550HP rating for PJIII.
You also get a free MSD Digital 6A ignition box from MSD until 5/31/12. Guess you can use it, or sell it to recover some of the initial purchase costs.
You also get a free MSD Digital 6A ignition box from MSD until 5/31/12. Guess you can use it, or sell it to recover some of the initial purchase costs.
#7
We installed the FAST EFI "Retro" computer and harness on my son's 302 with "stock 5.0" hardware. It was an easy, fast, and economical way to get multi port EFI at a total cost of about $1,200 once we bought the stuff needed to make the idle air circuit work. The car drives well, and is easy to reprogram for motor mods, etc., with no need for computer "reflashes".
We bought this after making a stock 5.0 computer work, but I didn't like all of the error codes because of the emission control stuff the computer wanted but wasn't installed, (i.e. evaporative control etc). At this point the computer needed to be reprogrammed, and we said screw it.
I am pretty sure one of the Holley setups uses a repro Chevrolet big block throttle body injector unit. Take this for what it's worth.
I should state that the FAST retro setup is NOT sequential, it is bank fired. I haven't seen a real world down side to this. Also, the Retro setup DOES NOT handle ignition so we are running it with a Duraspark II ignition.
We bought this after making a stock 5.0 computer work, but I didn't like all of the error codes because of the emission control stuff the computer wanted but wasn't installed, (i.e. evaporative control etc). At this point the computer needed to be reprogrammed, and we said screw it.
I am pretty sure one of the Holley setups uses a repro Chevrolet big block throttle body injector unit. Take this for what it's worth.
I should state that the FAST retro setup is NOT sequential, it is bank fired. I haven't seen a real world down side to this. Also, the Retro setup DOES NOT handle ignition so we are running it with a Duraspark II ignition.
Last edited by JMD; 03-15-2012 at 09:21 AM.
#8
For a less economical solution consider Edelbrock's Pro Flo II setup, I think it is the bomb, Total control of all engine management via a handheld in car control box, easy to tune, and it looks very cool....
It comes complete as pictured with a new MSD distributor and Air Gap intake...
It comes complete as pictured with a new MSD distributor and Air Gap intake...
#9
I've been on the fence between the Powerjection III (returnless style) and the new Atomic EFI by MSD. At Summit, they are priced nearly the same. The major differences seem to by 80lb injectors, 525HP rating, included fule line and calibration module for the polished Atomic. 62lb injectors and 550HP rating for PJIII.
You also get a free MSD Digital 6A ignition box from MSD until 5/31/12. Guess you can use it, or sell it to recover some of the initial purchase costs.
You also get a free MSD Digital 6A ignition box from MSD until 5/31/12. Guess you can use it, or sell it to recover some of the initial purchase costs.