no limit
03-11-2005, 11:07 AM
i have a 400 ex with k&n power kit, stage 1 hotcam, DG slip on,mph rev box,and its getting a 440 with 12.5-1 piston and the head is getting ported. when i install the pston and the head now will i have to make timing changes? if so how do i do that?