Quote: ....I would be surprised if even an Edelbrock RPM head, ported correctly, with the proper roller cam, couldn't approach 700hp at 500ci in a well thought out build.
I haven't seen an Edelbrock RPM headed engine make 700 hp yet. I've run a bunch of them on a 505 shortblock with 12.5 compression, Dominator carbs, roller cams, etc. They seem stuck at about 650 to 680 hp. Not saying it isn't possible, but I don't think it is a backyard bolt together deal to make it happen. Probably need some really good head work and just the right camshaft, dome profile, etc.
