Plug & Play Holley EFI Harness – Stock-Style Ignition Compatible

🔧 This harness is brand new, never used, open box, and 100% complete.

⚡ Plug & Play Holley EFI Harness – Stock-Style Ignition Compatible! ⚡

Upgrade your 1986-1987 Buick Grand National or Turbo Regal with this brand-new Holley EFI plug-and-play harness, designed to work seamlessly with the stock-style ignition system. Whether you're converting to Holley EFI or need a reliable wiring solution, this harness makes installation effortless while retaining full factory ignition compatibility.

✅ Brand New, Open Box – Never Installed
✅ Direct Plug & Play for Holley EFI Systems – No cutting or splicing required
✅ Retains Stock-Style Ignition Compatibility – Works with factory ignition components
✅ OEM-Quality Connectors & Wiring – Built for durability and reliability
✅ Perfect for EFI Conversions – Simplifies the wiring process for Grand National owners

🔵 Blue Dot: Brand new, and/or possibly only open-box items that are ready to roll. Original packaging might not make the cut, but the quality is spot-on. Save 25% off retail. 

The Fine Print All Sales Final: No take-backs, refunds, or exchanges. 

As-Is Condition: We inspect every part before it hits the listing, but we recommend you double-check compatibility with your project. 

Your Acknowledgment: By purchasing from Turbo 6 Parts, you agree to these terms.