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Old 08-07-2017, 09:29 PM   #26
GASoline71
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Re: HEI vs. MSD

Sweet. I read you did a Painless kit but wasn't sure how the wire came to the HEI.

Gary
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My 1972 GMC 1500 Super Custom (Creeping Death) "long term" build thread.

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Old 08-07-2017, 11:57 PM   #27
mike16
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Re: HEI vs. MSD

I have an old style MSD 6AL

Its nice but I have had some problems latley I cannot troubleshoot

Hei are all but fool proof,

Yes, a big thick wire to the positive running a full 12 volts

You can get away with a larger plug gap except harder starting and at higher altitudes

be sure to put some of that dialectric grease between the modual and the housing or it will indeed fail

I prefer a GM HEI used, over a Chicom new one. just based on experience.
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