8" rengade crank pulley and a 3.25" blower pulley? That comes up to 54025 impellar speed. Is that too close to the max 55000? Will that be pushing it? How bad would it be to use an 8" crank and a 3" blower pulley = 58528. I know thats overspinning it, but not by much. I guess what I am asking is what the maximun "safe" impellar speed would be with a shift point of 6200. It is a newer 2 belt Novi.