Hello:
I see quite a few posts where people ask: "what cam should I pick?"
Well, here is an article that I found on 3rd Gen.org to help the new person pick a camshaft and understand more what they are doing...Perhaps this will help on your next build for your car/truck. Hope this helps and it is easy reading and easy to understand.
http://www.thirdgen.org/sbc-camshafts-primer