EFI

Holley EFI LS main harnesses have a MAP sensor connecter designed for use with a LS1/2 style MAP sensor. The 558????416 is an Adapter harness that allows for Holley LS2 Harness PN 558????103 to be used on LS3 engines, which has a different MAP sensor.

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Crank/Cam Ign. Harness. Fully terminated harness. Connects to Holley 60???2 crank sensor and GM Cam???Sync Distributor AC Delco PN213???350 or eficonnection.com sync pulse distributor

Sealed USB Data Cable (Comes with ECU's)

j2A, j2B, j3, j4 Connector & Pin Kit ???? Contains connectors & pins, but no wiring. for Dominator EFI

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GM 4L60/80E Transmission Harness ???? Complete terminated harness with j4 connector to operate GM electronic transmissions. for Dominator EFI

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Connector J1A/B Inputs/Outputs Auxiliary Harness for HP EFI & Dominator EFI

The Holley EFI Ignition Adapter Harness for FAST??? Dual Sync Distributors allows easy connectivity of the Holley EFI wiring harness to the FAST??? Dual Sync Distributors.

This kit contains plug???and???play harnesses to connect Holley 24x or 58x main harness to Holley waste???fire DIS coils.