What should I be looking for?

Got a mild 318 everyday driver build, 74 dartsport..

I don't have the knowledge with diff ratios. Can somebody point me in the right direction?

All I'm lookin for is is an everyday driver, that I can light up the town with. You know, frequent stoplight racing:burnout:, but I don't wanna be afraid of taking it on the freeway for a weekend trip or something, like a car show a hundred or so miles away.

What should I be looking for? And If you have what I need, let me know. I'm in SoCal. (high desert) i'd like it to be a limited slip posi if possible.
:newb: