My buddy and I are doing a 350 buildup for a 21 ft. boat. I want to tune the engine for the high rpm band because that is where it will spend most of it's time. We don't want to dump a lot of money into it (of course). The chambers and pistons look good. We will get a new cam and intake but want to try to use a set of heads we have. I think the one set are 76cc 350 heads. I'm checking on the other set. I guess my questions are seeing my probable block/head combo and my goals, what should I look for in a cam and intake? Second is there anything else I should be considering since this is a marine application and will be at wot a lot? Thanks. ---Rich