rieds
05-20-2007, 05:45 PM
my buddy gave me some cash for workin on his 400ex and i'm gonna surprise him with an early birthday present of a stage 2 cam and a .040 wiseco high comp piston. what ratio piston do i need for 93 pump gas? his other mods are a white bros slip on and k&n air filter. what size main will i need for a stock carb? do i need to change the pilot also?