It's a helluva job. Go ahead and do the timing belt, tensioners, and serpetine belt while you're at it. You'll have to set the timing again, so you'll need a new valve cover gasket and a few other things to hold the cams in the right place. Have you changed the coolant lately? Also throw a 180 degree thermostat (should be able to get it at autozone) in, it helps immensely. Did your temp gauge go in the red? Did you damage anything?