After reading a couple more posts ive found a couple guys that say they lean out there cars into the mid 13 range. This sounds like it may be a little lean so im wondering if anyone has a dyno sheet of a stock 2.5 or 3.0 to see what kind of A/F ratios they pull. I suppose if we could get close to or match those we should be alright.


1997 GMC Sonoma 4.3 5 speed, 10psi Intercooled ATI Procharger, 3" Spintech exhaust, Went 13.6 at 105 mph.