I cleaned the injectors-I haven't check the spray pattern and check the exhaust elbow (it was in really good shape-just some soot)

The engine will start very quickly run for a few seconds and slowly die like it is out of fuel.

I thought I might have a blocked fuel line but the engine ran the same after I ran a new fuel line. I also removed the vent line so the tank was being vented from the fitting.

I installed the squeeze bulb between the large filter and the lift pump. Is this the right location for it?

I bled the high pressure side of the fuel injector pump but had the same results.

The only thing that I can think of is that the tube in the tank has become blocked or moved when we cleaned the tank. My next step will be to connect a plastic portable fuel can directly to the large fuel filter and see if that helps.

Any suggestions?