I have been doing duraspark conversions for over 20 years, I've never used a resistance wire to power them, I use a constant 12+ volt source, and have never had any problems, even my 88 2.3 has duraspark conversion without a resistance wire it works flawlessly, so it is the best, easiest, reliable, and if something where to happen any autoparts has the parts to fix it. Resistor wire is for points distributors so that they wouldn't constantly be burning the points up.
WOW! you've been doing them that long and still don't know shit about them.
The Duraspark system does use a resistance wire. Without it it will melt the potting out in a quick hurry. Sometimes it doesn't even get a chance to melt the potting before it fries the box.
Ok that might have been a little rude, sorry. If you use an internal resistance coil it won't fry the box.
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