Since I installed the FiTech. I have been playing with tuning it. What are some good AFR Numbers to try and hit?
Well, 14.7 may be stoichiometrically "perfect" for combustion, but not for "real world" operation.
C'mon Patrick, even we Alabamians know that 14.7 is stio...stoik...stoicio...uhmm, just right in the lab but not on the street...Theoretically, 14.7:1 is stoichiometric perfection or whatever for idle.
If you are going EFI...consider Megasquirt...the units are dirt cheap if you assemble yourself with even the top-of-the-line pre-assembled units costing $1200. For a pushrod v8 you could get away with a $250 unit though...use with a TBI if you want the carb look, or with any number of EFI manifolds for something that will be closer to ideal...cant beat the price for a full standalone system that can do whatever you want...and has plenty of forum support. I have built 3 or systems over the years and couldn't be happier...even hooked up traction control 2 times(one of the many options) and am currently using one to control a VGT turbocharger.
18 degrees. Forgot to mention it is a C4 and stock stall.What's your initial timing? I don't think that cam is all that big, I'd wager with a little tuning it would idle about 800, maybe a little less. Have you set the throttle blades so the IAC is between 3 and 10 at idle?