Holley EFI Ford TFI Ignition Harness
Holley Part #: 558-305
This harness is used to connect the Holley EFI boxes to Ford OE TFI ignition module.
These will work directly with Ford Mustangs with TFI ignition (5.0 pushrod applications).
These will also work with a Gen 1 Lightning with TFI if the correct TFI (push start) module is used.
As always, we can assist in wiring support if necessary or if you're unsure whether you need this harness or not.
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