[Dead Parrot]

Check/replace any rubber gas lines in the cab. Really don't want leaks in there.
Pull the distributor cap and replace points and condenser and rotor. Some condensers seem to last forever. Others have a life span. If yours is EOL, it can play havoc with the ignition. Also check the cap contacts. Possible there are dead many legged critter parts in there as well. Check the size of hex wrench needed BEFORE installing new point set.
Check and gap plugs. If they are in decent shape, you can defer replacing until you get the timing and carb dialed in good.
Start it in the dark and look for blue fire escaping the plug wires or playing over the outside of the distributor cap. Escaping blue fire points to replacing the wires/cap that are leaking.
Change transmission fluid and filter. You might have accumulated some water from condensation during the years it sat.

See if you can borrow/buy an old style idle tach/dwell meter. Useful for setting the points correctly.

If you haven't already, add several gallons of fresh gas to the tank.