So as it states i just got into a slightly used 426. It has a big bore kit and a 13:5:1 piston. And it hauls, I havnt really rode a dirtbike other than a yz125.. but i own a yfz450 and a couple other quads. Lets just say after finally getting this beast started i am hooked. My only dissapointment is that its winter and i live in montana so its going to be hard to ride alot. This site seems really informative and i look forward to posting more... Pictures will come soon.. Thanks fellas.