take your car to a dyno facility. get some numbers down, and compare it to other GSR's that have dyno'd at that same facility.

come back to us when you're done. it should only cost 75-100 bucks.

you'll know exactly what power you're making (or not making, for that matter).

dyno's are humbling experiences. 11 times out of 10, people come in thinking they're going to get xxx amount of hp, but the numbers come out and its always lower.