i heard something about team green pimpin out their KLX with a 331 over bore kit and the other common high performance mods then i read that they got a wiesco high compression piston and i am not sure about the details however i beleive that it said they got a 350cc piston and had it milled down to a 331. I dont know what the website name was though, has anyone heard anything of that nature or of high comp KLXs in general?

 

Its already 11:1 stock.

 

well yea but imagine running like some 103 octane race fuel and a 13:1 or 14:1 compression, ahh hell that would be extremely hard on the engine. but a higher compression would help the torque(i believe)