Are 2001 Kawisaki ZX6s fast?

[slowbubblecar]

Someone at work has one and says it is really fast. I want to race him in my gst if I can get it running right. Do you think I will have a chance with my car tuned. I thought I would be able to beat him but he seems to think he could beat me just using 2nd and 4th. I think it is one of the smaller 600's. It is the same as the one MATCHBX has but isn't the ZX6R. My setup is:

6 bolt motor with 1g head, intake manifold and TB, BS elim and arp's
60 trim with 82 ar exhaust side
T3 manifold
QPR 2.5" 02 housing
3" Thermal turboback
Greddy Big FMIC
1g BOV
3" chrome intake
780cc injectors
Walbro 255 Low pressure
Dsm Link
Guages and other little stuff.

The car seems quick right now on 25 psi pump. The turbo is a little lagy, but If I am in the right gear, isn't hard to spool. Do you think I would have a chance on pump gas, or do you think I will need 30 psi and race gas to beat him. I am pretty sure the race gas wouldn't have a problem taking him.