hi all and i need some info from the pro's can i shave the stock head of my banshee to rise the compricing ratio and how much should i shave . im at sea level and i have some littel mods trinity pipe k&n carb mount filters jetting and needle and boyseen power reed on stock cage and im planing to port the reed cage is it worth to port it in theas mods i told you or it wont do any thing to my stock engien