Well I went from a stock bore banshee with FMF pipes and a cool head with 21 cc domes,,and Jeff gave me a port , 33PWK carbs, vforce3s, and clamp on K&Ns,,man this thing rips,,should I also mention that I have a -2 swingarm so things are really fun,,,,,I have to say what a pleasure it was to have Jeff do my motor and I can tell you that this man is sooo busy,,I have been to his shop 2 times and it amazes me the things that this man can remember that I have said that I wanted out of my motor,,,Jeff I really appreciate everything you did fro me,,I would call you and tell you in person but I know what a curse that damn phone is,,, you are my hero and thank you very much,,,my bike runs great