I have a 65 stang with a 200 6cyl engine. I can turn the engine over and keep the car running only if i floor the gas. It will also stay running if i have the choke pulled all the way out so the car is running at max rpms. However if i start it and dont press the gas there is no idle. I have tried everything from changing the points to rebuilding the carburateor so if anyone has any idea what the hell is going on let me know thanks.