I dont know if this matters or not but the cylynder is brand new from esr with the trx9 port job. I am currently running a trx5 exhaust and somewhere during the rebuild i have decided to go with a sand dune screamer. I am wanting to swap over to the trx11 centermount, 41.5mm carb with arm wrenching portwork. I have heard you are one of the best, do you think your port work would be a better investment than sending it back to esr and having it ported to the trx11, can you squeeze out more then esr can? I want this thing scary fast, a little bit on the unrideable side, can this be done with a 330 stroked 3mm.