He’s still doing motorwork,he kept all his porting tools.I’ve got his porting and head mod along with a dynoport y-pipe/pipe on my xm,It rips. Give him a call to look at doing your motor.
Re: Opinions On a 163" T3
Here's one.
https://www.kijiji.ca/v-snowmobile/grande-prairie/2016-summit-800/1404838109?enableSearchNavigationFlag=true
I've basically got the same sled as this and it works! for $10k Rob is giving it away.