Occasionally 3 of us ride. The RedShad engined with a F6, Biggest Ed w/V4, and I'm V2. We have the devilist of a time figuring out how to race each other. Biggest Ed has the overall advantage as he can pull 2 plug wires and get that low down torque for low rpm racing, and go back stock for the high rpm. RedShad and I try to and do sometimes fool him. RedShad will act like he is going to race and Biggest Ed goes full 4 cylinders and I get him with my low down. Biggest Ed is very competitive. He is fun to mix up. ....louie