83 ta rebuilt 305 cfi. starts great cold but if it gets hot the engine dies at every stop unless you keep one foot on the gas and one on the brake. crack throttle in order to start engine hot if does stall. all sensors adjusted to spects and tb have been rebuilt. temp gauge does not work. sending unit bad as far as I can tell. no check engine light has not come on and at wot the car stumbles for a sec then will take off. fuel pressure maybe? est or ecc not working any easy way to check them?