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Reply to "Atomic EFI vs. FAST EZ-EFI 2.0"

quote:
Originally posted by smeadphoto:
Aloha Gang!

Now that the brakes on my car are thoroughly sorted (many mahalos to Scott Bell for saving my okole), I'm looking into Major Project #2: Converting to EFI.

Since most of the runs we do over here take us up Haleakala (at a touch over 10K feet), the car nearly refuses to run at the summit. I've been doing some research, and I've narrowed it down to two systems: MSD's Atomic EFI and Fuel Air Spark Technology's EZ-EFI 2.0.

I'm leaning towards the MDS system, as it interfaces with my 6AL control box and distributor, plus it's a returnless design (no need to plumb a return fuel line to the tank).

One thing I do like about the EZ-EFI system, is that it's E85 capable (not that I want to run it, but could in a pinch).

Has anyone had any experience with these two systems? Recommendations?

Mahalo,

Scott


I have seen the MSD Atomic system and it seems to be pretty good. I seem to recall that for the best performance a return line should be used. I was going to help a friend set one up and he did use a return line on his car. Running a return line to the gas tank is very simple on a Pantera since the tank is next to the engine.

I used the F.A.S.T XFI 2.0 system which is port injected and allows for full tuning. It is a bit more expensive than the throttle body units, but it is self tuning. They also offer a dash mounted monitor that allows for some adjustment to the system and you have several different tuning set ups that you can switch to with just the press of a button.

I understand the desire to use a simpler less expensive system, but in the long run I believe port injection is the way to go. I have had my car up to a little over 9000 feet and it runs fine with the XFI 2.0 system.
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