Dart shuts off when warmed up

First time on here, I have a 1972 Dodge Dart Swinger with a 225 Slant Six and a 3 speed transmission. I have not been driving the car much do to it not being my normal dailey driver but just started about a week ago when I took it out. When I would come to a stop the car wanted to die on me and also when I turned into my driveway. I was thinking it could be the Idle and maybe it was to low that when I was not on the gas it would shut off on me. Now when I go back to start it no problems it would start up no problem. Any Ideas?