New fuel pump, and filter. starts with ether but not without.

What is your question?

1992 chev suburban half ton 2wd with rear tank. Truck would stall during driving and wouldn't start without dumping gas down the throttle body with the flaps open. so i changed the fuel pump and the fuel filter. truck fired right up and ran a few minutes and the stalled and wouldn't start. tried swapping the computer with my other truck and no help. I'm confused. Right now, sometimes it starts without ether and runs fine until you turn it off and then won't start again. it's like the injectors won't squirt until the truck is running.. Help; me out here