1996 Dodge Avenger surges and not getting enough gas

My car seen like its not getting enough gas. When i stop at the light and try to take off it surges and go slow than it go. I replace wires, plugs, sensors , fuel pump, and injectors and now i going to replace the fuel pressure regulator. Once it go it go, but then when i stop it starts all over again. Some say it the distribtor.