Nuthin wrong with the quad I just tore it apart to build it. I've done about everything I can to my 250r so its time that the 700 was a little faster. I'm having Bo port the head, just ordered today a 11:1 piston, webcam 290 grind, hard welded rockers, valve spring and retainer kit, and gaskets. Next week I will order barkers, autotune and maybe clutch.