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On top of impressing spectators...
It's a multiple spark discharge ignition system.
It's designed to completely burn all the fuel in the combustion chamber
by sending out a hotter spark multiple times during the course of each
combustion cycle.
Is your car still running points? Has it been converted to HEI?
Most engines will be just fine with a 74-90 stock GM HEI upgrade.
Factory HEI throws out a helluva spark that takes care of most of
our needs.
Got a picture of your engine bay?
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