hey, i'm in the process of building a 400ex and was wondering on carborator. it will stay stock bore and stroke along with stock compresson. for now. i'm wondering if i should do a scary fast or powernow carb mod or go up to a stock 450r carb? that and i was wondering if the stock 450r carb had an acellorator pump?
THX
Trev
THX
Trev