im running with stock 230 with my current mods and its been sitting in my garage til i rejet. altho it seems to run fine prolly too rich but like i said i got jets coming in the mail today so im gonna go 300 and down with plug chops. me and u are having the same problem only im a few steps ahead. learn how to do plug chops (which is simple) and understand the carb. jetting is easy too the only hardest part is taking it off the bike. these guys are very helpful so u should ask q's 1st b4 anything.