Twisted6: Thank you very much for the reply. Yes, I agree that to give away 50+ CI isn't a good idea, but the concerns that we have are the limitation on carburation. We are limited to the one single barrel carb, stock intake maniford and know of nothing, that would comply with "stock" that is bigger then the 1 5/8th venturi that we are running. We already are running in the area of 12:1 on compression. Would this carb really be able to feed the additional volume of a 302, or would you anticipate that we would have to really reduce the combustion area. Hope I haven't sounded too ignorant on engine building. Thanks again, really appreciate the help.