I like Kevin's philosophy...if it aint' broke don't fix it! Is your engine the 4g63 or a 420a?
Try to do this yourself with the Haynes manual or by reading the vfaq.com timing belt install tutorial if your car is turbo:
1) re-time the engine....make sure the belt is tensioned properly, and see how the car runs
2) if car runs fine, game over, your valves are good enough
3) If not, try to fix things yourself, or hire a mechanic
If you jumped more than a couple of teeth and your car ran, chances are you bent a few valves. When timing my car, I made the mistake of letting my buddy Brian time the cam sprockets--he had timing off 180 degrees. Fortunately, my battery was too dead to start the car, and Dupeto_E caught the problem before we got it started!