Some don't have wires, the coils are mounted direct to the spark plugs.
Some have a dual spark plug design where the plug mounted coil also sparks another spark plug on the other side of the engine. Removint these spark plug wires will still allow the engine to run but will eventually ruin the coils.
And the third type will not run with out wires.
Fallow the plug wires!
They are screwed into the engine at the ends of the spark plug wires.
Check spark plugs, plug wires, do a compression test
I would replace the spark plugs after 50K, the wires and plugs again at 100K.
Could be in need of a tune up. Replace spark plugs, wires, air and fuel filters.
It means # 3 cylinder has a misfire. My advice is to replace all the spark plugs, and check the spark plug wires carefully.
the ignition coil
With a Spark plug gap tool :)
Need the firing order for spark plug wires to distributor on a 1978 Dodge 440
No.
Spark plugs and wires
Remove the alternator. The rest will then be obvious.