J
A fuel pressure test on the injectors was done I sent them to Marren Injectors he shipped them back with a sheet of the flow rate before and after.Sounds like it's not getting fuel, if it were electical it would not start and run until the starting fluid was used up. You may want to revisit the injectors. Was a fuel pressure test done?
Remove the cap on your tank, turn on the ignition and listen for the pump to cycle. If you hear a spraying or bubbling sound you may have a pin hole in the fuel line in the tank. The spraying sound may depend on where the hole is relative to the amount of fuel in the tank.
Found out the check valve fell out on the supply getting no pressure. Ordered a rebuilt kit for $12.50 starts and runs like a top