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Old 09-26-2010, 05:58 PM
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coil wires need help

I have a 1969 camaro. It has two wires coming from the firewall to the coil + side. When I hooked up msd to the two wires that come off the + side of the coil one wire started to smoke when I turn the key to one position. Do I need both wires since I now have a hei? we cut the one that was smoking and everything else seems to be working fine. Is that wire for the old point system? If I do need bothe wires where do I hook up the one wire??????

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Old 09-27-2010, 03:15 PM
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The point type distributor used a ballast resistor or resistor wire in the ignition ON position and another wire from the starter solenoid to the coil to provide increased voltage during cranking as the starter can, due to high amperage load, pull the system voltage down.
The MSD system requires full 12 volts from the ignition ON terminal. The ballast wire must be removed and replaced with copper. If you have a ballast (a white porcelain thing) the wires can disconnected and spliced. The starter wire is not needed.
I'm going to guess that the ballast wire smoked due to the load of the MSD system.

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