Camaro connection is a good one to check out.
I personally like <a href="http://www.396ss.com" target="_blank">http://www.396ss.com</a>
my dad has bought several parts for his 62' from Restoration World...seems to be of good quality and price <a href="http://www.chevroletrestorationworld.com" target="_blank">http://www.chevroletrestorationworld.com</a>
they have a showroom/warehouse in Ohio and Indiana.
If I find anymore (I know there are) I will post them.