i’m also at sea level here in boston. anywhere with higher elevation will need larger jets than what i’m running.
what sort of airbox are you running? which slide are you running? what’s your mesh filter stack like?
i’m running one of those dellorto branded Minarelli/Garelli air boxes with the air inlet holes pointed towards my frame.
the slide, as previously mentioned is a #9.
the filter stack is completely stock, unmodified.
i use a tachometer to help tune, it lets me know how many rpms i’m revving to. i’m spinning right around 8500rpm at WOT.