Stinger OXY-CR is a highly OXYgenated leaded race fuel for use in crate engine applications.  This race fuel has an octane rating of 108 (R+M/2) providing increased detonation protection compared to lower octane crate applicable fuels.  Tuning and increased fuel flow will be required to take advantage of the optimal power gains this fuel can produce.  While rule limitations on compression and machine work could have you running in the middle of the pack, Stinger Race Fuel Products can help you run up front with Stinger OXY-CR.