BillyBob, welcome to the assalyum, lots of good info so far. While you have the valve cover off take a hammer and a block of wood and tap each one of the valves to make sure none are stuck. You should be able to tell if they are. Before you try to start the truck make sure that their is oil to the rocker arms and the rest of the system. Disconect the coil wire so she won't start, and turn it over until you see oil at the rockers. Having said that I know that you have gotten rid of of all the old crappy gas from the tank and lines. You can try to turn the motor in netural with a braker bar and socket on the crank pulley, take the plugs out and try a little marvele mystery oil in each cylinder, let it sit for a day or two before tring to trun it over if you can trun it by hand you can try the starter. But be sure not to rev it to high once it starts, just enough gas to keep it running until it starts to warm up. Best of luck and let us know how it goes.
