LOL! Good one Shaman. I went to highschool with a guy who still rides his '90 ZX7. He swears by it, says he'll never own anything else.
The '90 was actually a big improvement over the '89, but it isn't legal to race in VRRA. Soon it will be, though.
My '89 has a Penske shock, Racetech "Gold" rebuilds, and a few other modifications as well. It isn't really quite apples to apples with an original '89.
Surprisingly, the water pump was easily sourced and not outrageously expensive.