I just ran the math on theoretical efficiency of both compression ratios. The higher CR has a 0.8% increase in power. In the case of a 600hp engine that amounts to 4.8hp.
R.
And........ With ex manifolds, this build will be well shy of 600hp.
68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123 Dealer for Comp Cams/Indy Heads
