Thanks for the idea on the Cam, big help there, I had not thought of doing it like that. I will have to see if they can match for the best performance with 750 CFM. As for getting the crank pollished, it would cost me an arm and a leg, I live on an island in south east alaska, and there is no one here that does machine work like that. I can not even get heads resurfaced, or ported, as why I bought the linc heads. I was told by the guy I got them from that they would flow plenty. The pistons I have have decent valve relief, and as long as I use a standard throw on the crank, shouldn't they be alright? Any other thoughts, please let me know.