Too many wrong moves to count- - - - -
Starting an engine out of long term storage without doing things like changing the oil, adjusting valves, oiling the cylinders, etc. is an invitation to disaster. Better late than never, so go ahead and change the oil (and filter, if equipped), adjust the valves, soak the cylinders with Marvel Mystery Oil or some similar kind of penetrating oil, and fill the cooling system with fresh water. No antifreeze for now- - - -if there's a head gasket leak, you don't want it in the combustion chambers.
Check the points for proper gap, inspect and/or change the spark plugs, and do a static timing procedure to get the ignition timing in the ballpark. Then crank up and do a short run-in to check for expensive noises, smoke, etc. Sometimes a smoker can be rehabbed by overfilling the crankcase with 2-3 quarts of kerosene or Diesel fuel, and letting the splash from the crankshaft bathe the inside of the engine with solvent. Don't drive the truck of put any load on the engine with solvent in the oil. Drain the oil/solvent mix while hot, and mo9st of the gunk will drain out with it.
Jerry
