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JFairman JFairman is offline
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Join Date: Jul 2006
Location: S. Florida
Posts: 7,274
The epoxy filled MSD high vibration blaster coil is best if mounted upside down on the fan housing.

The car will run with the 2 MSD trigger wires either way but it is triggering from the beginning of the signal one way and at the end of the signal reversed.

The correct way is at the end of the signal, I think it's a square wave and ignition timing will remain the same wired this way.

If you reverse the polarity of the wires the wrong way idle will be alot higher because timing will be advanced around 20 degrees and may be unstable at times.
Old 03-18-2010, 05:02 PM
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