Quote:
Originally Posted by GTOKIDRH
Thanks for the intel! Again, the stock engine in my wagon has the low compression 8.6:1 pistons as well as the large chambered heads. My thought is I already own the 670 small chambered heads which will only push me into rhe mid 9s compression wise which is still pump gas friendly and I will gain 3% more power than why not? It's free. I won't change the heads until I do the cam swap. I'll be in there anyway. I admit that i know just enough about engines to get myself in to trouble. Still much to learn. Thoughts?
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That 3% Increase in power is NOT going to be in your normal driving RPM range, IF it was, Pontiac would have done it..... ALL, and I mean ALL, Horsepower increases are at higher RPMS, and Most all are Not used in normal driving.
ALL Horsepower is calculated, even at the dyno, its Never measured.
You have a nice car, hate to see it get into "mission creep" and not enjoyed..