....BUT the guys chip in here, but wouldn't the 906 heads be a good flowing head for this application? No?
In a mildly ported form they are good for, say, 620HP. All out, you can get 750HP-800HP normally aspirated on pump gas. If Comp Cams hadn't forgotten to turn the cooling water on to the engine and toasted it, while on their dyno, we should have been closer to 800HP instead of 730HP.
Darned expensive heads when we were finished porting them.