Here's the deal, I was getting 2-3* of KR in 2nd and 3rd gear pulls with a 3.4" Pulley, CAI, 91 octane(highest we have here in New Mexico), 2.5" DP, Autolite 104s, and a tune by Reptile, went to Autozone and bought the $25 NOS octane booster, and now I have 0* KR through all gears and RPMs. Is Octane booster bad for your engine? Does this mean I can go down to a 3.3" pulley for a day at the drags if I still have no KR?
Thanks.