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  HOLLEY EFI LS2/3/7+ (58X/4X) ENGINE MAIN HARNESS EXTENDED LENGTH LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI Part # 558-134

  $582.00 Original price was: $582.00.$555.95Current price is: $555.95.
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  HOLLEY EFI LS2/3/7+ (58X/4X) ENGINE MAIN HARNESS LS2/3/7+ (58x/4x) Engine Main Harness for HP EFI & Dominator EFI Part # 558-103

  $627.00 Original price was: $627.00.$522.95Current price is: $522.95.
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  HOLLEY EFI MAIN ENGINE HARNESS FOR 58X LS W/TBI Main Harness for us with 58x/4x Gen 4 LS with Terminator Throttle Body Fuel Injection Part # 558-112

  $616.00 Original price was: $616.00.$588.95Current price is: $588.95.