I am in the UK and have just purchased a new tm33 pumper carb for my 1998dr350. It has had a 3x3 hole cut into the air box with a k&n filter fitted. The exhaust is a DEP aftermarket can fitted who when I spoke to them said this is there pipe for the dr350 and standard jetting would be fine for the can. My question for the carb is what jets to go with the air box mods. Any info much appreciated.