Thanks to everyone! I'm pretty new at this and I'm amazed at how helpful and knowledgeable, not to mention fanatical, "real" 2002 owners are! After measuring the chain slack (a little under 3/16" and a very close inspection), I've decided to leave it alone for now. I did get the new timing chain, rails and the rest of the engine back together and it is running like new! I won't be driving the car a lot and I'm planning on doing the body work soon. Next year or year after if I still have the interest and stamina I'll probably get a hoist and engine stand and pull it to rebuild the bottom end -- then I'll put in the new gears and chain (possibly a new oil pump). Thanks again to all!