I have an 03 GSXR 600. Motor/Tranny Mods include:
1 tooth down in front
3 teeth up in rear
R K 520 gold chain
Hindle high exit full exhaust system
PCIIIr powercommander
Yoshimura adjustable cams
bored 60 over
Titanium Valves

I pulled a 10.26 @ 133.54 during a test and tune @ Bradenton.
But on the flip side to this I know my bike very well and have launching down to a science. An average rider on a stock 600 will run 12 flat maybe even break into the high 11's. Learn how to launch and you can get very low 11's out of a stock 600. I have raced a few Z06's and they are strong in the quarter but if you can launch it should be no problem!