you might not need to rejet I have no snorkel the rest stock and 180 mains 700-ft above sea level air screws 2 1/4 turns out (started at 1.5 turns out) I tried going to 210 mains and it was way too rich but i run a synthetic oil at 42:1 FIND BENBB AND GET HIS (JETTING FAQ) OFF OF HIM. His 30-40 question Q&A is the best thing to have when jetting you should go to a synthetic pre mix if you are not already using one that will richen your mixture anyway