Q: 73 SB Dart stalls at idle. Hard to restart, will drive fine when given gas and cool

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Car will run fine when given gas. Originally a slant 6 car, carburated 360 with vacuum secondarys. Car will randomly die at idle and if you slam the gas and let up real quick it can also die. Restarts fine after its cooled off for a while. Fuel delivery problem? Vapor lock? I don't know where to start.

My car has 96586 miles.
My car has an automatic transmission.

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