If you do the cam, you better do something about the harmonic balancer or you'll be replacing that soon. If its never been pulled and you aren't changing the cam, leave it alone. Once you pull the factory balancer and put it back on it will fail soon after. These cars are old now, and the balancer is a press fit. Removing it and re-installing it will increase the tolerance and it will start to vibrate and then shatter around the hub and fall off the car. I've seen it on 2 of my 3 SC's. On the first one, the balancer fell the f.ck off while I was driving down the highway. That was an expensive tow and a pain in the ~~~ to fix. The BHJ balancer is your best bet. So budget another $400 for that if you plan to do the cam. These cars aren't cheap to mod since you usually can't just change one thing, you have to change a number of things at the same time (blower, maf, injectors, tune for example).
This reminds me, I need to order a BHJ for my 92 so when I put it together and do the cam I won't be re-installing an old balancer.