Hey guys i can get a used banshee head off a 99 for 40 bucks...is that a good price??? if so i am goin to get it cause mine is dinged up due to a broken piston. my question is how much should i mill the head to get more compression..i heard you have to rechamber it cause the piston with hit the top of the head??? if so can i mill it without having to rechamber?? let me know what you all think.