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    558-303 Harness - Mag Pick-up Ignition Harness

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      Purchase 558-303 Harness - Mag Pick-up Ignition Harness

      SKU: HLY-558-303
      558-303 Harness - Mag Pick-up Ignition Harness

      $81.95

       


      Holley  Sub harness , allows MSD controller to work.

      Mag pick up harness- allows MSD Control Boxes to tie into the ECU harness  so the computer will control the timing


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