Homerboy,
At this point in time I'd say your best move would be to purchase a Chilton's or Hayne's truck manual. They can be ordered thru Amazon or most any online bookstore or from your local bookstore down the street. They are available in used condition for less than $3 or new for less than $16. They have a troubleshooting section that would VERY helpful to you and would explain things quicker, better and in much more detail than you'll likely get here.
This is one example:
http://www.amazon.com/Pick-Ups-1965-86- ... 481&sr=1-4
But until then try this:
Block a tire both front and back and put the transmission in neutral to prevent any vehicle movement. With the engine off and the air cleaner off the carb, activate (move by hand) the accelerator linkage while looking down the inlet of the carb. Do you see gasoline spray slightly? If not, then you may have crap plugging up some of the fuel delivery passages in the carb - indicating a carb cleaning is in order. If you do see fuel being sprayed, fine.... then it is not likely a fuel issue. Move on to the ignition side of things and check for good spark.
Carefully remove a sparkplug wire by grasping the wire by the boot (the heavy end over the sparkplug) and while giving it a slight twist, pulll it off the sparkplug. If you have a short piece of hose (approx. 2ft long), place one end near the sparkplug then blow with your mouth as hard as you can thru the other end to dislodge any/all rust debris that may be laying around the base of the sparkplug. Now with a sparkplug socket, remove the sparkplug and give it a good inspection for any cracks in the porcelain sections or any oily/carbon/charcoal-like buildup on the electrode end of the sparkplug. If it looks to be in good shape and fairly dry and oi-free at the electrode end, this is good. If not, then it is likely a sparkplug change is necessary. This would also be a good time to take the extra step and purchase new sparkplug wires too. Replace them one at a time so as to NOT mix up the wire placement on the distributor cap or how the wires are routed on the engine.
However, if the sparkplug looks good, then proceed to check for spark. Do not re-install the sparkplug yet, rather insert the sparkplug into the sparkplug wire boot and hold the sparkplug wire with sparkplug allowing the bottom electrode to rest against a bolt head on the intake manifold - you're trying to get a good ground for it. While you hold the wire/plug against the bolt head, have a helper turn the key as if to start the engine. You should see a bright blue spark fire across the two electrodes at the base of the sparkplug. If you do not, wiggle the plug a bit to ensure you've got it grounded on the bolt and try it again. If still no spark, then it sounds like you've got an ignition issue and you should proceed to further troubleshooting the ignition system. Such as inspecting the inside of the distributor cap, rotor, checking for fire at the distributor end of the coil wire, then 12Volts at the coil, etc. as you work your way back up the system. All of these procedures are stepped out & provided in the manual that you're going to order, right?
Good Luck & keep us posted with your progress!
BarnieTrk
