by v8astregt » Wed Jul 05, 2006 12:36 am
I don't think aluminum is neccessarily the answer. You can make every bit of power out of the steel heads as you can the aluminums. I just wen't aluminum because of the weight.
But if you were to go with either a basic Vortec head, or step up and do some Dart Iron Eagles, along with a good cam, you should be able to get good power. Now that 331 hp, was that at the flywheel, or the rear wheels? And what heads are on it now? Cam?
75 Pontiac Astre GT: 406SBC/TH350, roll bar, S10 goodies, down to 11.47 so far, more to come later.