I have used the star tron many moons ago in my white bike. I did run a lot more poor. The bike has head, can, throttle body, pcv, filter, exhaust replace the 2 long stacks with 2 short, tuned and more stuff. I quit using and problem solved. Seem like that we the problem. I can get 90 octane ethanol free locally here. That I believe is the best way to go