Hi Big Jim!! does your engine have bushings or needle bearings?? if it has bushings on the con rod try a 15% nitro glow fuel mixed with 2 parts high octane gasoline and see how it runs, it should work better than gasoline alone, but if it has needle bearings you don't need all of that oil, mix your 15% ntro glow fuel with one equal amount of methanol ( drops to 7.5% nitro and 9% oil) and then mix one part of this mixture with 2 parts high octane gasoline this should give you a 2.5% nitro and 3% oil Gas/Glow fuel.