Another D/Dart 275/273 question???

My 1966 Dodge dart runs horrible (273 2 Barrel )! It stalls when I come to a complete stop ,the engine runs ruff and it shuts down when it gets hot ( starts losing power until it just gives up and stops ). After letting it cool down it starts back up, but still runs like crap ! If you have some suggestions please email me @ [email protected] Thanks !