ProComp/Speedmaster aluminum heads

My machinist buddys sees good almost great numbers out of em. Not chevy numbers but 320+ with minimal effort.

OOTB, not on my car. Id buy bear and have em done but then again im lucky and dont have to pay for machine work....

I would not reuse your valves. They wont be right.

I cant remember what the parts csme out to do build a set. My buddy gave me the mumber but i forget.

I will be buying a set most likely.

I think with a max effort port job we could see 350+ CFM.