Cant get my truck started after sitting for 1 year

[VetteVet]

Putting the fuel pump inlet line in a can and disconnecting the output line from the carburetor eliminates the tank and the carb and tests the fuel pump alone. If you are not pumping fuel then the inlet line may have a hole in it and will not let the pump build suction. The rod could be stuck down away from the camshaft lobe and not moving the pump lever. You have an excellent post above to troubleshoot that. One thing that I would add that not too many are aware of is that on the front side of the block just around the corner from the pump, there are two bolts that thread into the block and they are open to the pump chamber. The top bolt lines up with the fuel pump rod and if some one has put a bolt in there that is too long, it will thread into the rod and bind it or bend it so that it will not operate. You may discover this when you take the fuel pump off.

These bolts have to be installed or there will be a significant oil leak there.