This plug is used in a simple Holley Sniper EFI application where none of the inputs or outputs are used. It plugs in just like the Holley harness.
Holley Sniper EFI 558-491 Sniper EFI Input/Output Harness
Holley Sniper EFI 556-154 Sniper EFI HyperSpark 2 Ignition Box
Holley Sniper 556-151 Ignition Box SNIPER EFI HYPERSPARK IGNITION BOX
Holley Sniper EFI 565-301 Sniper EFI HyperSpark Distributor FORD 260/289/302
Holley Sniper EFI 19-125 Sniper EFI Fuel Tank System 255 LPH
Holley Sniper EFI 120-511 Sniper EFI Air Cleaner Drop Base - Black