Yay another 1st gen! Welcome to the club.
There are a ton of places to buy parts for first gens, but depends on what you want to do; restoration, resto-mod, protouring, and etc..
Here are some of the more popular ones:
http://www.npdlink.com/modules.php?name=Camaro_Catalog
http://www.rickscamaros.com/
http://www.yearone.com/serverfiles/f...ain2.asp?cat=8
Then there are a ton of performance specific sites too. Subscribe to
http://www.camaroperformers.com/index.html and that is full of smaller manufacturers too.
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Praise the Lowered
67' Camaro - Worked 327, Hotchkis TVS suspension, 4 wheel cross drilled discs, AM radio FTL
05' Silverado - Stock, stock, and stock.