My current combo:396CI. 12 to 1 Comp.,AFR 190cc Heads Ported,CC 305,soon to be CC 306,Stepped 1 5/8- 1 3/4 Headers,3 inch SLP Exhaust,52 mm TB,2800 stall,3.42 gears,The car came set up with 29 Deg. of total timing with LT1 Edit Program,need some input if these motors respond to added timing,this is not my daily driver so i can run race gas if needed,so far the car has run(full bodied 94Z) 12.1@114 on motor 1.74 60 ft thx for any input
CJ

 

You'll have better luck with a response on LT1 Tech..... moving it there.