what size cam?

[Daves72'GMC]

I'll be rebuilding my 402BB and boring it 30 over and putting a 750cfm edelbrock perfomer carb and intake manifiold on it. What type and size of cam should I put into my engine? I'd like to to keep the dependability in the engine and be able to drive it cross country if I want, but have a nice sound and increase the HP.I don't want to get too big of cam and have over heating and other problems and have to change other equipment. Should I match the carb,intake,cam,lifters with edelbrock parts and put an edelbrock cam and lifters in it or is there a better cam and lifters to use? Thanks everyone for all your help.