Gen1Pat
Well-Known Member
Well... If race fuel is readily available for you, then, go for it! But, me, I'd be sticking to no more then 11:1. That, or, a cam with more duration and bleed off. I've go the Wiseco 11:1 in mine, with a slightly decked head, and am running just find on 93 pump. However, I am running the Mega 252x1 and that is a big cam. On my 86 ATC350X, I'm running an 11:1 Powroll big bore with a custom ground cam and so far have had zero problems with 93 pump.