Help Please
 

I have a 84 gsl. I am having some issues with it. If i start the car and pull out the choke it does fine. Also when it idles it does fine it just when i give it gas it sputters and dies on me. Normally between 1500 and 2000 rpm. I drove it to work yesterday ran fine all the way there. Now it is still at work due to this issue.. Could it be the carb is bad . I have just tuned the car up. New Fuel filter, rotor button, Dist. cap , Plugs and wires. Any help would be great. Thanks James