Clutch is new and has about 700 miles on it. Spec stage 3+ didn't feel any slip at all. Hot lapped a couple times. Was waiting ten or so between most. Have rear head cooling mod, new fluidyne pro h/e and added some purple ice (don't think it does alot but what the hell) Car never got hot at all. Probably the driver issue mostly. It was my first time on the 1/4 mile and only my third track time ever. Have no doubt with a driver it will do 10's.