In addition to using an external source of fuel for starting
And, to better ensure a better chance of success,
you may wish to consider new plugs, points, rotor, condenser, cap and plug wires;
maybe even a new coil, on a motor that's been idle for unknown reasons.
Many times these old trucks get parked for really simple failures.
All this stuff is relatively cheap and you'll want to freshen it up anyway if it fires.
Also, while you're checking compression as suggested.... make sure the fuel pump is actually working at the same time (a simple hose from your temporary fuel source to the pump). Again, a relatively cheap part that can be eliminated as a source of trouble before actually firing.
Lastly, assuming the engine is free, I'd drain the old oil as completely a possible;
and, put some new fresh oil in it before firing. With spark confirmed, fuel delivery confirmed, and reasonable compression the old girl should sputter to life. Just turn the key on and push the starter button.
It's always fun coaxing an old motor back to life! Have fun!
Mike
