i know this has been asked but i searched and found nothing. anyways. im pretty much on my last bore right now .80 over and when it blows im thinking of just scrapping my cylinder and selling my head and going with a 240 big bore kit. my question is do the heads need rechambered on these or are they good from the factory? i would also get it ported to. and how long do blaster transmissions last for before they need rebuilt?
