[many944s]

If you aren't excited about pulling the head, you can remove the cam belt, then remove the cam tower. Once the cam tower is off, you can place a straight edge along the tops of the valve stems. If any of the stems are visibly lower than the others, you have bent valves. Now the disclaimer! If the cam tower gasket is still the original gasket, it will be a PITA to clean it off the mating surface of the head (providing you are lucky enough to NOT have any bent valves)... Of course if you do have bent valves the head will be coming off anyway then it's alot easier to clean up! From personal experience I would say you have a couple of bent valves, 4 more than likely.

I'm sure it's not what you wanted to hear, sorry.
As a side note... Even if the valve stems appear to be the same height, this does NOT mean you don't have any bent valves. I have seen valves bend, and be pulled into the seat by the spring so it looks straight! When the spring tension is removed, these valves will tip on the seat enough to see light through!

I'll be keeping my fingers crossed for you! If you do end up with some bent valves, drop me a line and I can help you out with a rebuilt head.

-Nick