[mokicruz]

I have a set of "722" Ramair IV heads with round exhaust ports I was going to run on a HP street engine but a few people into classics said don't run them buy aluminum I would be wasting original parts. I had bronze manganese guides installed. They are unported but milled .030 so they are Super Stock legal. I have crane rockers and crower springs on them now. If I went to aluminum heads I would use Differnt rockers and springs on ported heads. They are the first A-body trans Am heads from What the Machinist told me. I Know they Flow better than any other Pontiac Head I've ever ran so I can't go wrong using them for HP. I just don't know about using up irreplacable parts. The Block is a 400 and was bored but I was going to bore it .060 and regrind a 455 crank for it and have the block clearanced. What would be Best??????