Classic/Antique Car Repair: engine stalls when hot, electric fuel pump, electric pumps

Question
i have a 1956 ford 272 engine i just had a new electric fuel pump and gas filter put in , the engine tends to stall out after driving it and it's been warmed up i can't figure out what might be wrong .

Answer
I have a question, where is the electric fuel pump installed? It needs to be as close to the fuel tank as possible and as low as possible. Electric pumps are pushers not pullers. If it is installed near and as low as the bottom of the tank as you can get it let e know and we will go from there.