- Ignition & Electrical
- Holley Wiring Harnesses
Simple Plug & Play Wiring Harnesses
Holley EFI systems have been relied on by enthusiasts across the globe for increased power#, fuel economy#, and overall engine efficiency. A properly functioning EFI system begins with correct wiring#, and these Holley harnesses can assist. Each wiring harness provides fast and easy installation for quick wiring solutions.
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