i have almost the same set-up but i'm running 310 mains, at 32:1 , i heard more oil is not good,because the oil doesn't fully burn off the piston and keeps building up and not allowing the gas to cool down the top off the piston like it should.i have 19cc domes but i run a spacer plate, next year i want to port and have domes cut. 100race gas,v3 reeds, reed spacer,toomey2;1 with k&n filter, stock carbs,intake.with t5's, my plugs look perfect, and my banshee runs great.