Originally Posted by
SiriusC1024
This is one of the dumbest/most dangerous tunes I've ever seen btw. Desensitized knock sensors, reduced KR, no spark truncation for shifts, running OL, LS1 to 6900 rpm, 4L60E beyond 6000rpm. Just look at the MAF. Vacuum-referenced IFR with non-referenced everything else. Reduced injection timing values, yet a larger duration cam. I could go on. What chimp tuned this?
Start over with factory settings and tune it from scratch. You'll most likely get best results running Speed Density. If you insist on MAF start with the factory curve and multiply by 1.2.