u/Wonderful-Annual4351

I have a 86 pickup with the 22r and an automatic transmission. The main issue I have is that if I am at a stop light or stop sign about 5 minutes after the car has been turned on it will completely stall and the car will turn off. I think it happens when the engine is done warming up because I can hear the drop in rpm and then it will stop about 2 seconds after. If I give it a little gas I can save it but I'm not always quick enough. It also does run a little rough at the moment. Anybody have solutions?