Tuning Edelbrock Pro-flo

[getZ]

Anybody have any baseline tuning info for edlebrock pro-flo 3500? I pulled the whole thing off my camaro and put it on the z car to make use of it and keep the unit running. My combination is a 383 with dart 200cc heads at about 10:1 compression. The cam is a single pattern cam 238 @.05 with 480 lift. The orignal chip was burned for the edelbrock performer rpm combo, heads and cam (edlebrock performer rpm heads are 170cc intakes and cam is 238/248 @ .05 and the lift is 488/510.

 

I'm new to tuning fuel injection and the books I have aren't that helpful. It looks like a lot trial and error under different conditions to get it right. I thought it would be as simple as just hooking a wideband O2 sensor on it, tune at various rpm levels and away you go. It turns out the engine fuel needs are very different under load and temperature. There's even a provision for quick pedal movement to compensate. I plan on starting conservative with timing and fat on fuel, but that seems easier said than done.

[Mike kZ]

The pro-flo is made to run with certain cams. The best thing to do is call the Edelbrock tech line and tell them what you have. They can burn a new chip.

http://www.edelbrock.com/tech/

[getZ]

That's probably what I will land up doing. The first time I called them, they said I could tune it by hand if I was computer savy, so I thought I would give it a try. I don't think it's incredibly difficult, but you need two people to do it. Sombody watching the controller with the wideband and the other guy driving. I tried doing it by myself and it's extremely hard to read an LCD display while driving.