quickslvr510

I have a stock automatic 98 z28 camaro with the exception of long tube headers. I'm looking to upgrade my stock gears but I'm having a hard time deciding on what gears to go with 342's or 373's I'm planning to throw a stall in as well but I want to know what is the perfect setup and why???? I'm not tracking the car I just want to be fast enough to the point where my door won't get blown away on take off or rolling starts!