Unterminated Ignition Harness (558-306) by Holley®. Designed utilizing the latest technology, this product by Holley features premium quality and will perform better than advertised. Perfect for your vehicle and lifestyle, it is manufactured to meet or exceed stringent industry standards.
Notes: For Avenger EFI, HP EFI and Dominator EFI
- Made with precision and quality in mind
- Built to last
- Designed to meet your specific needs
Holley® being an undeniable leader in fuel systems for over 100 years, Holley offers a wide range of performance carburetors, fuel pumps, intake manifolds and engine dress–up products for street performance, race, and marine applications. Holley carburetors have powered almost every NHRA Pro–Stock champion and every NASCAR Sprint Cup team for 40 years. As a single solution, or partnered with products from other Holley companies such as Hooker, Flowtech, NOS, Weiand, and others, the Holley products provide the quality and performance you've been looking for.