Cam Questions

[Rosco]

Well it has come to me that all's i'm going to be installing this summer is a full exhaust, (headers to mufflers) and possibly a cam. I've been told that you DO hafto pull the engine to install full length headers, which I am planning to get BBK 1-5/8", and was thinking If i hafto pull the engine might as well stick a cam in it and fix my rear main seal leak. Now, my question is, should I get a cam? Like a B303 or an E303, as someone in my area with one of those, (don't really remeber what he said it was. they sound so alike, B and E..heh) I would assume he had a B303 cam because he said it had just a little more lift then the stock cams. Now he doesn't have anything else done to his, just a cam, and mufflers, and he's getting a pretty mean sound out of it. I was also wondering, if I am to put a cam in my stock motor, what kinda cams are made for stock motors? (simple question eh?) Well, that is if there are any made for stock motors. Thanks Alot guys.