Well, what are you restoring? If it's a Camaro of Firebird sweet! The best places are "Yearone", "Classic Industries", or "the Paddock". They helped me alot when I first started working on my 67 Camaro. They are standardized and while you may find better deals elswhere, these three places will probably be your best bet for alot of parts. I also recommend getting a chiltons or hayne or...if you can find it, a GM Parts manual that the dealers would use, it's got all the parts and instructions on how to put them in. It's basically a chiltons, only better. Good luck!