very hard starting and runs very bad

Hello.,

  95 tahoe 350, recent fuel filter change.  Have changed plugs, wires, cap and rotor, o2 sensor, ignition module, alternator. It's been missing and hesitating for a while now.  It has slowly over time required more and more time to start.  Now it takes 2 minutes or so to start if at all.  I smell gas as I am cranking it.  If it does start, it runs VERY poorly.  Sometimes stalling at idle.  If I have the defrost on high or the lights on, it adds to the problem. Very very bad acceleration.  The plugs have about 3000 miles on them.  Could they foul already?  It's not a pretty truck, but she's still my baby.  Any help would be greatful.

 

Bill

billyjoe7238622.4309375

changed the coil and have the same problem

Is there a chance that there is a fuel leak? or low fuel pressure? The plugs could foul as a result of another problem. It might be worth while to have a look at them to help diagnose the problem. Is the check engine light on?

It was the fuel pump....again