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 - Hydraulics - Cylinder Anatomy - by Curtis von Fange. Let’s make one more addition to our series on hydraulics. I’ve noticed a few questions in the comment section that could pertain to hydraulic cylinders so I thought we could take a short look at this real workhorse of the circuit. Cylinders are the reason for the hydraulic circuit. They take the fluid power delivered from the pump and magically change it into mechanical power. There are many types of cylinders that one might run across on a farm scenario. Each one could take a chapter in
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