the rotor in the distributor only turns around. It can not fire the wrong order. A wrong order happens when the wires are in the wrong order.
18436572
1-6-5-4-3-2
1-6-5-4-3-2 clockwise on the distributor.
Do a compression test to determine if you have a valve problem or not and be sure the firing order is correct and don't forget to replace the rotor.
The distributor send high voltage from the ignition coil to the spark plugs. It ensures that they fire at the correct time and in the correct order.
165432 is firing order I believe the #1 is the lower right if you looking from front of truck
First of all, it doesn't have a carb. I would suspect a bad distributor cap and rotor and/or bad wires and/or bad spark plugs. Also be sure the firing order is correct.
Standing in front with the hood open, looking at the distributor, #1 is at the 6 O'clock position, from there clockwise it is 1, 6, 5, 4, 3, 2.
The distributor distributes the spark to the spark plugs at the correct time and order.
Cylinder order is drivers side...1,3,5 and 2,4,6, on the passenger side. Double check the wiring order to make sure that it is correct.
Double check, then triple check your firing order. Especially which distributor post is #1. Sounds like you're one off.
The ignition condenser is located inside the distributor. In order to repair the issue, the distributor will need removed and replaced.