Mine has served me well. Never flamed out, tune always stayed within a few hours from track to track, The head on it is alittle small, but works. I ran 30% Trinity Monster Horsepower with more oil content for the first break-in gallon. Then switched to Byrons Race Blend 30% after. OS P3 Hot Turbo Plugs.

I will be switching it to my back-up and running a GO GX-5R as my main motor this summer.