One reason why SOME use special plug wires IS THEY RUN A WIDER PLUG GAP AND AN AFTER MARKET HIGH VOLTAGE CAPABLE COIL which causes higher voltage AND/OR some after market high energy high voltage coils require some degree of ballast/reactance in the plug wires so they use non stock recommended plug wires........
If alllllllll is the same, same plug, same plug gap, same old factory original coil, same fuel, same compression etc etc etc., an elec switch used to conduct then break coil current produces about the same result (at least until points would wear and burn) as the old stock points mechanical switch............
IE YES if you ONLY change to an elec switch versus old points and all else remains the same, NO you don't have to change plug wires but can of course
YES if you use an after market high energy high voltage coil and set the plug gap much wider I WOULD UPGRADE TO THE PLUG WIRES RECOMMENDED.
All an elec switch does is replace mechanical point switching so if no other changes NO you dont need new plug wires and + or - ground doesnt matter either
BE SURE to get a switch matched to your polarity + or -
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Today's Featured Article - Harvestin Hay: The Early Years (Part 2) - by Pat Browning. The summer of 1950 was the start of a new era in farming for our family. I was thirteen, and Kathy (my oldest sister) was seven. At this age, I believed tractor farming was the only way, hot stuff -- and given a chance I probably would have used the tractor, Dad's first, a 1936 Model "A" John Deere, to go bring in the cows! And I think Dad was ready for some automation too. And so it was that we acquired a good, used J. I. Case, wire tie hay baler. In addition to a person to drive th
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