Hi Jack, I appreciate your input on the hemi v. the flat 6. My six has been built (cam, hi-comp pistons, dual manifold, split exhaust, etc) so maybe there's more power there than what I imagine. The engine has not been started since it was built ~ I have no idea of its condition beyond what the seller told me (he's a friend of mine so I'm sure he didn't misrepresent the work he had done). If I keep the flat six I might invest in an Edelbrock head as the seller stopped short of going to that expense and just had the old head reconditioned. Anyway, thanks for the heads-up on some of the challeng