um im gonna say that if thats a stock carb a 360 is way to big guy... if its the mikuni carb the sizes go by 10's so the next down would be a 350. but lokin at ur mods u should be down around 300 tops. i have very similiar mods and i am in mass. im actually running a 300 main but its soaking my plugs and im going back down to like a 290 or even a 280 wen i get time. how does the bike act?? it should be bogging bad and ur plugs should be black with that jet. do a plug chop and let us know wat it loks like and i would go to the local bike shop and get sum jets. i would get a 330, 320, 310, 300 and mayb a 290. jettign is important and u wanna get it rite its like 2 bux a jet. just unscrew the one u have out and put in the new ones.