Product • Support • Tuning
Part # 558-503
$1,012.95
An EFI system depends heavily on being supplied a clean and constant voltage source. The grounds of an electrical system are just as important as the power side. Our Holley EFI Harness Kit comes complete with the main harness, power harness and injector harness to support your primary system!
Features & Benefits
Includes Stealthram/TPI Main Harness, Main Power Harness, V8 Injector Harness, HEI Ignition Harness, Ignition Adapter, and Tach Input
Fits: GM TPI and Holley Stealth Ram™
Installation note: NOTICE: You will need to purchase a ECU and O2 Sensor to make this a complete kit.
| Harness Application | GM |
| Ignition Type | CD Ignition (No Timing Control) |
| Injector Connector | Jetronic / Minitimer (Bosch) |
The EFI Brain
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