Thread: HEI 12V backup source (yes another 12v question!)
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  #3  
Old 11-03-2025, 04:42 PM
Goatracer1 Goatracer1 is offline
Ultimate Warrior
  
Join Date: Oct 2003
Location: NH
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I power the HEI (and other things) off a relay triggered by the original ignition feed. The lower voltage is plenty to turn on the relay.

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