[Formulajones]

Originally Posted by RocktimusPryme

I would like to see back to back power numbers rather than flow numbers. Maybe that's been posted and I missed it.

But as I said, Ive been shopping around for BBC heads and in most head to head comparisons I have seen the cheap castings do give up power, even as their flow numbers seemed similar. Obviously there are a lot more options out there for the BBC than there are for Pontiacs which could play a factor as well. One test specifically was the 320cc Pro Comps against several other big name heads. While the Pro Comps performed admirably, they lost handily to AFR and Brodix.


To be fair here, if I remember that test correctly the BBC E heads lost handily to the AFRs and all as well. Considering that's largely what we have on the Pontiac side, maybe the Speedmasters are closer to the competition. Of course they could be better too. I would like to see it.

That's why I bought AFR's for my BBC. Nothing else compared to the flow numbers vs port volume at that time, and likely still don't.