launching points are 6000-6500rpm.try runing 100 octain gas that should help as far as detonation. Also, keep an eye out on the rear differential gears that are being made. The person to talk to about that is SIRPRIZ (mark) very nice guy and helpful. The gears should knock off 4-6 tenth of a second, which is really good and the best part about them is, you keep your TT axles, hubs and other components oh yeah they will be direct bolt on. Ofcourse, you would have to have a rear diff shop to put them in, Good luck.