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Phillip..... ..... The frontmount ignition system sparkies are just addequate at best. And while the carbon-core radio interferance suppressing "sipcon" ignition wires worked for you (for a while), the built-in resistance cuts down available sparkies, and when your points and plugs wear (which is a normal), the loss of available sparkies is noticied as a "miss". And unless you are listening to your radio as you tractor, you'll never miss the "sipcon". I think your TISCO parts guy did you a great service by insisting you use their copper core sparkie wire. Remember, the OEM sparkie wires were copper-core. 12 yrs ago, right after I got my 8N, I replaced my old stiff and cracked sparkie wires with high quality copper-core "hot-rod" wires for a Pontiac V-8 because the sparkie end had right-angle sparkie boots. They're still good. But now you've got a radio interference problem from your good copper-core sparkie wires with your modern battery powered transistorized solid state tachometer. Heres the trick, get a 10K (10,000) ohm 1 watt resistor from RadioShack and wire that (solder and insulate) into your tach sensor wire as close as you can to your tach. (you may have to cut the wire next to the tach, a couple of inches is close enuff, use your engineering judgement) It will act just like your old sipcon carbon-core radio suppression sparkie wire..... .....Dell, the old radio guy
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