1988 Ford F-250 Pick-up Stalling - Ignition System

Question: truck strarts and runs great but after 10 minutes or so the truck quits. You can keep the truck running by pumping on the gas repeatly but will evantually quit. Wait 10 minutes or so and it will run for another 10 minutes. Any ideas

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Technican: Hello, The first thing that comes to mind is fuel supply. How old is the fuel filter? Have you checked the fuel line pick-up screen/filter in the fuel tank to see if it is so dirty that the pump sucks it flat and blocks flow? If it goes flat and the engine dies (pump suction quits) then it will "open" like a flower blooms (you get the idea) and the engine runs again until the flattening repeats. Have you checked fuel pump pressure?
Owner: i will check the fuel pump pressure what is the correct psi
Technican: What engine do you have Sir?
Owner: 460 cid engine
Technican: Fuel pressure should range from 38 to 42 PSI on the 460.

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