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This FAST HEI ignition adapter harness adapts the XFI 2.0 ECU to an HEI-style ignition device. The kit provides the harness and connections required to interface the aftermarket ECU with HEI distributors, enabling timing control and ignition integration without modifying the main harness. It preserves clean wiring while allowing the XFI system to manage ignition in HEI-equipped applications.
FAST Ignition Adapter Harness FAST
