I recently purchaced a 00 400ex off a buddy of mine. I got a great deal on it and I have some extra cash left over to hop it up a little more. It currently has a full Big Gun exhaust system, a K&N filter system, jetted carb (not sure what size jet yet), and Rev box. I want to take the next step to make it a little faster but I cant decide which to do. I think I am to the point where it is going to require several things that go hand in hand. Like piston, head work and a cam. If i could get some info on what would be the next best step that would be great! If you could include approximate costs that would be great too!
Thanks
Ryan

 

A cam would be nice $125 hotcam stageII from Moto-Man, a piston would run u about $115 and a bigger carb would make ur bike do wonders about $100-$300