We're going to need more information than you gave us to make any sort of valid recomendation.
2V or 4V heads?
Automatic or stick?
Modifications to engine?
If automatic, which automatic?
A/C? Power brakes? Power steering?
Street use or strip only?
If street, size and type of exhaust after the headers?
I'm not trying to be a smart-alec or anything, but some of these factors will make a difference in your selection.