I've been reading some post on here of what people are using and i'm thinking I may be a little lean. Currently I have 48 piolts with 152 mains and needle is in the middle slot. 66MM pistons,stock port,coolhead with 20cc domes,power pro in frames and pod filters. Bike runs like a raped ape but I dont see alot of smoke coming out of the pipes like it did when i had the stock carbs on it. Oh yeah I'm at 200ft above sea level.