i have 0 time on a dyno to extensively tune my bike and several people on here can probably speak to how good it runs... 392 btw. and camatv was the one that built it and to say his "true skill" is overall bike setup is funny because all he did was my motor; granted, he did my WHOLE motor because it was a basket case from trinity, maybe that is part of it too. i built/setup my own chassis, which i think works well, but i would give my bike credit due to the motor more than chassis setup . you have a grudge against pv motors because yours never ran while i am biased to them because mine runs amazing, so really, maybe both of our opinions should be taken with a grain of salt. i understand your point of view and can relate to your frustrations with cheetahs, but they can be built to run right. sure, they aren't for everyone, but it is funny how you discourage EVERYONE from them. you seem to have a boner about dyno's and i don't have much to say about them because i have never used a dyno with this motor, but i will say i would put my 392 cheetah up against any 421 cub out there (in the sand, not the dyno). not saying its faster than all, but it will run with many bigger bikes out there...