Clone 390 on a GTC TAV-2.. Motor is stock rated at 13 hp. Its rejetted with a pipe. I came here "after" I bought it and was told it would just shred belts, GTC was junk chineezie and wouldn't hold the power. It works flawlessly, I'd put this TC on a 420 in a heart beat. I got probably 10hr's run time on it beating the pi$$ out of this bike. I'm 245 and my buddy is over 260 and I can't keep him off it. It has the origional belt. I also have a "Comet" TAV-2 made here in Greater Richmond Indiana on my red bike, Next build will have a GTC, There's no comparison in the quality and I really doubt then GTC is all chinkeze or whatever, its all billet machined, the Comet is a casted looking mess
I am getting ready to scratch out a another with a 18hp Vanguard. I'd go with a GTC TAV-2 but I don't think it will fit with the fixed back plate, I know the unit will handle the motor just fine. You'd have a hard time getting me to go back to a centrifugal...JMHO based on what I have experience with, Walt