Holley Pro-Billet Ignition Adapter - 558-325
Allows For Plug And Play Ignition Timing Control
Pro-Billet Ignition Adapter - For Use w/Terminator X EFI;
Designed to plug and play with MSD Pro-Billet distributors and Holley EFI main harnesses with an ignition connector, such as part number 558-104.
Holley is quickly becoming The New Standard In EFI! Holley's HP ECU is standard equipment on the 2013/2014 Chevrolet COPO Camaro and Holley's EFI throttle body powers every NASCAR Sprint Cup Series team.
