I've run Champion NY12Cs for about 100K miles in my BJ8 with stock coil, Pertronix Ignitor, Lucas cap, stranded copper wires and Lucas resistor terminals--never a problem (except when I tried carbon core wires). Off the plug, the terminals will throw a spark about three quarters of an inch.
Hello everyone. I'm doing a little research about Champion vs NKG, this thread popped up.
Hey Bob. Is your car Positive ground?
(Champion NY12C...Quick search didn't find that plug)
BJ8, Years ago I switched to negative, Champion RN12YC, Lucas Sports coil, Pertronix Ignitor, Pertronix carbon core wires, Lucas cap top load with wires that takes boots because the side load cap screws into carbon wires had problems making constantly good contact. If I remember correctly, maybe not, I had a problem with copper wires affecting the tach (which was changed to neg) until I switched to carbon wires. Tach then was accurate again.
Anyone change to neg, sports coil, Pertonix Ignitor, copper wires, Lucas side load cap, tach changed to neg and not have a problem with the tach?
I can't remember why I needed carbon wires.