ELECTRIC FUEL PUMP Inexpensive fuel pumpsPumps are ideal for replacing that stock pump when it dies. Easily installed One has a working pressure of 4 to 7 PSI rated at 35 GPH which is suitable for most domestic carbureted vehicles. The other is 2.5 to 4 PSI rated at 28 GPG which typically is used on carbureted import vehicles. Check your vehicles requirements to select the correct pump for your application.