1994 Chevy Pickup won't stay running

[sixpack_sid]

I have a 94 Chevy Silverado pickup with a 350 throttle body. I drove it yesterday after it's been sitting a couple months. When I start it up and step on the gas it cuts out on me. It sounds flooded when I try to start it. I rev the gas, put it in Drive, when I step on the gas again it stalls. It did this everytime I came to a stop. After it warmed up it seemed to run better. I slowly eased on the gas pedal it stayed running enough to get me back home. Any suggestions as to what I could look for?
Thanks!

[TruckDriver]

You could have water in the gas now. Gas starts separating after 30 days now with the new gas were using. That's why you have to use a gas stabilizer now when your going to let something sit for a while.

[Tilar]

Any check engine lights on?

[Silver R/T]

Probably moisture in gas with all this ethanol they're putting in gas

[no318]

IF it idles good and has a problem just OFF idle, unhook the hose to the EGR valve and try it.  I have had lots of those with a weak spring in the valve allowing it to go full open at very little vacuum (right off idle).

[sixpack_sid]

I filled the tank when I took it out, cause it was on empty. The Check engine light is not on. I started it up today again and it stalled again in the driveway. When I started it up again I floored the gas for a couple minutes full pedal to the floor and the engine reved, died down, reved and died down constantly until I left off the gas pedal. I left it run for about 10 minutes and when I took it for a spin, it didn't stall anymore. I was not on the pedal hard. I don't know what's going on.
Would an EGR problem cause the engine to rev & die down like that when have the pedal to the floor? I'll try & unhook it tomorrow and see what happens. If it fixes the problem then what? Is it a bad EGR Valve?
Thanks for the help!

[no318]

That doesn't sound like EGR.  Could the fuel pump be really weak?

[Back N Black]

Check the idle air solenoid, pull of the air cleaner and look down the throttle body, you should see it move when you rev the engine.