Motor dies when gas pedal pressed

1st is the choke problem, should be closed when cold and have vacumn canister to assist in opening choke when running. If carb is new shouldn't be the problem. 2nd would be timing, it has does have the original mopar electronic ignition? that would eliminate points. If retarded timing, would buck and shudder and just run bad. Timing should be about 10 degrees advanced at idle and about 34 at 2000 RPM if you have timing tape on Crankshaft balancer. Could also be checked with timing light with a readout of total advance. Of course it also depends on the inards of the engine if all is well. My 318 when it ran bad had all bent push rods and a bad distributor. You just have to check everything methodically. Also if choke is electric make sure you have 12 volts at the connection.