94 Caprice Stalling Out

First off Happy Easter to all...

Now to the issue. I have a 94 5.7L, I have been away at school and my car has been at home. Im home for Easter weekend and when I have driven my car it doesnt start right up like it used to. I have to put my foot all the way on the gas to get her going. Then after driving for a bit she stalls out at stops as soon as I hit the gas. What can possibly be the problem? i have a few ideas like a starter, plugs and wires, alternator/battery, EGR, but I dont know exactly. Any help will be a big help........

Was the gas tank full while the car was sitting? If not water in the fuel from condensation could be the problem. Put some "drygas" additive in and fill the tank. Also to minimize the chance of it happening again fill the tank before sitting the car.

Im going to get right on that. I hope thats the problem...

Also to minimize the chance of it happening again fill the tank before sitting the car.
If you can afford it, use premium gas. in my experience, it helps.

I will definently put premium in from now on if it will prevent this from happening again. Could anything else be the culprit for the stalling other than the gas issue?