Make your own wires. Hard to find solid copper wires. Use an old extension cord.
You see the temporary spark plug wire using an old corded tool cord.
Then you see the new 7mm with the old hardware. I had to take out the #1 plug wire as it’s the same length as #6 plug wire. I left the bare wire long without twisting it down on the newly purchased 7mm wire. I needed to be sure the depth would be deep seated into the distributor that’s why it was left long.
This GMC 302 runs much better with all 6 cylinders firing. More power, better fuel efficiency and no burnt out valves in that dragged along cylinder.
The person before used a plug wire from a newer car, not even solid core wire. Poor repair could have burnt up the cylinder and valves.
Most NAPA stores have the 7mm plug wire.
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