Holley 558-304 EFI Wiring Harness for GM Small Cap HEI Distributors to Holley Avenger, HP, Dominator EFI Systems

The Holley 558-304 EFI Wiring Harness provides a reliable connection between GM small cap HEI distributors and Holley EFI systems such as Avenger, HP, and Dominator series. Designed for ease of installation, this ignition adapter harness ensures consistent signal transmission for optimal engine performance. Constructed with high-quality materials, it offers durability and resistance to automotive environment stresses. This harness is suitable for custom and professional applications, simplifying the wiring process and reducing installation time. It is an essential component for enthusiasts and technicians working on EFI conversions or upgrades involving GM HEI distributors and Holley EFI controllers.

Features:

• Designed for GM Small Cap HEI Distributors to Holley EFI Systems

• Compatible with Avenger, HP, and Dominator EFI series

• High-quality wiring insulation for durability and resistance

• Easy-to-install ignition adapter harness

• Reliable signal transmission for engine performance