yup... Give Pat's jetting calculator a whirl. It will get you close.

Assuming stock needles, no shims, 42 pilots, all the snorkels still in tact, elevation at or near sea level, and the original paper filter (wheh!) you should be close to a 135 main.

2002 Bandit 1200/ GSXR cams/ 1277 BB Kit/ Holeshot header and can/ 38mm flatslides/ a good head/lotsa hp/lotsa tq- lots of rear tires...