The reason I asked about whether or not the 9.35:1 was the original CR target is........ it seems like the cam duration might be a tad long for only 9.35:1.

With the restricted intake and exhaust, combined with the modest CR, the running dynamic CR starts to taper off pretty quickly once the limited airflow really starts kicking in.

Sometimes running a little less duration will spike up the peak TQ numbers, and if the shape of the curve after peak(same drop in tq/rpm) is maintained, it can yield a higher peak hp number.

I refer to that as, “start high......end high”.
It’s usually only applicable to the types of builds that peak pretty early and make more tq than hp....... which are basically always airflow limited in someway or another.


68 Satellite, 383 with stock 906’s, 3550lbs, 11.18@123
Dealer for Comp Cams/Indy Heads