Quote: Stock wise they aren't much better than factory heads, but they respond very well to porting.
Huh? I have to ask why you think this? Considering when dwayne flow tested them, he found OOTB stealths to flow +/- 5% of OOTB eddy rpms at all lifts. So if they flow the same as e-heads, why would they be no better than factory heads in stock form?
