Specifications

MEFI III to IV Conversion Kits
• Installation Small Block
– Mount the MEFI IV ECM with existing hardware
– Connect the J1 & J2 connections on the crossover harness
– Mount coil driver/bracket to relay bracket
• Alpha requires spacer and screw provided
• Bravo remove and retain rear MerCathode and rear relay bracket screw for
mounting
– MPI models connect coil driver harness to crossover harness then to coil driver
– EFI models connect coil driver Y harness to crossover harness then to coil driver
• Route Y harness to cool fuel box
• Disconnect engine harness from fuel pump
• Connect male connector of the Y harness to fuel pump
• Connect female connector of the Y harness to the male engine harness
connector