So if I wanted to run these pistons what type of lift for a cam are we talking? I’m probably gonna port the head I have or the ones I pulled I think are already ported I’ll have to check.
Yur getting ahead of yourself; reread YRs post, #17
IMO; yur making things waaay too complicated for yourself. The difference in power from 10.5 to say 12.5 is about 3% at peak rpm. On a 400hp 340 that is 12hp or about one cam size.
Spend the money on closed chamber heads, and flat-top Hypers ,and get the pressure down to pumpgas territory.
For some nice street-torque, run aluminum heads and 190psi, and 87E10, easy-peasy.
