Ok thanks, so my best way to go should be to sell my ported jug as is and take the other stock port one that I have and port them...
And what kind of porting a 4mill need ? I know I have to lower the exhaust port to BDC but for the transfert and intake what should I do ?
I want a trail bike setup with load of midrange not a high-rev drag setup... For the pipe, for now I have a set of T5 and T6, I didn't think the T6 will handle the 4mill so it will be T5 for now... But I'm looking for a set of Pro Circuit. What do you think of that pipe on 4mill ? Do you have better idea on trail pipe for this setup ?
Thanks !