i have a couple of question about going to a 4 mill. do i really have to change the domes and pistons ? i was told that i had to go with the big bore domes and the blaster pistons . that means that my cylinders would have to be bored out to 80 over. right? the reason i ask is because my cylinders are stock bore and i was wondering if i could just install the 4 milll crank and keep the stock bore. the pistons are brand new i just got them. they are the wisco pro lite. is it possible to do this oh and also i still have stock carbs right know they are currently jetted with 340 can i keep them or do i have to get bigger carbs. right now i'm kinda short on funds and well too really make my banshee a true 4 mill would run me about 1200.00 and that is just in parts. my quad currently has a ducan drag port with 2 boost ports on each cylinder, the cylinders are stock bore but have the wisco pro lite pistons. also i have the v force reed and the 1/4 inch spacer which is install in the front of the reed instead of the back. the carbs are stock but jetted to 340. I install 18 cc domes on a pro design cool head and i'm running 110 octane . for the air filters i put two uni they work pretty good and aren't as heavy as the k&n. i also installed a 160 alba stator . it runs good but i just want more power. if i just put the 4 mill crank with what i got now will it make a difference in power or not really . hope someone can give me good advice