on my gfs bike its just a k&n filter and reeds .. im running 25 pilot and 250 mains.. and thats still just a tad lean. when i got it it had 220s.. and would not start without "start yo ba@$terd spray" like urs
also when i had a stock shee with fmfs and filter i ran a 290 main 27.5 pilot.
im at sea lvl.
so u could be lean