It can be mighty slow on time though and not start. Won't backfire either.
Pull the distributor cap and the number one spark plug. Put your thumb over the spark plug hole and have someone crank the engine (stay away from the fan) and watch the rotor. When the compression blows your thumb off the spark plug hole make a mental note of where the rotor was pointing. Place the distributor in a position for the rotor to be pointing at the number one spark plug wire.
Or move the plug wires so that number one spark plug wire is where the rotor points for number one then place the others in order.
I don't think I've ever seen white spark on these old trucks with a point style distributor. A pretty blue color spark is what I want. An orange colored spark may not fire the truck up.
Double check the point gap, and make sure the valves have the correct lash if it has solid lifters. If they are hydraulic lifters, you could have them too tight.
