David Hoff

I have a 94 CK2500 with the 350 motor. When I press the accelerator the motor for lack of a better term the motor falls off. It's almost like it is starving for fuel. I have changed the exhaust from the converter back, fuel filter, fuel lines, O2 sensor, MAP sensor, coil and distributor, it has not resolved the problem. Looking for other possibilities, my next move is to cut the converter off see if that helps. Any other ideas on this? Thanks