Jack,
I fully respect you, but I have to disagree. I don't have numbers or Dyno figures to back it up, and admit that. But Nobody has ridden around a rephased engine and thought it had the same power of a stock engine that I know of. And, to try and prove the Rephase builds more power, I am building a bone stock engine internally, all stock pistons, cam, etc... just rephased and will be testing it in a known chassis.
Hopefully that will happen this spring. I will find someone willing to dyno their bike, and GIVE THEM A FREE REPHASED ENGINE if they will do a before and after dyno test...
If I am proven wrong, I'll be happy to admit it. But the rephases just keep proving to be a powerful engine with excellent throttle response and torque. Even a 750 Kitted XS isn't comparable to a rephased engine, in my personal experience.