Running race gas through an engine with less the 11:1 compression is just pissing money down a hole. You only need it for the high compression built during events like extreme boost levels with some kind of forced induction or nitrous blasts. The rest of the times you wouldn't notice any difference in your times versus pump gas. l've seen a lot of guys pissing and moaning about paying $10 a gallon for race fuel and thier times weren't any better than running on the regular pump unleaded.