im looking to do an over haul on my engine.i want to put a BB stroker on it but i heard the 4mm blows the tranny out.so is a 3mm better or the 4mm.i dont want to break anything.also i need help with jetting BB,hot rod stroker,toomey pipe kit,roost boost cdi,26mm carb,torque plate,v4 reeds,K&N...