Holley sniper

I know nothing about your car/ system. But if you are dropping that much on the ignition line, YOU ARE LIKELY to have SERIOUS overvoltage / charging problems. Find out where the drop is coming from. If the ignition line is dropping from the battery/ through the bulkhead/ ignition switch/ back through the bulkhead, the VR will "overvoltage." One way to fix that is to "back up" (on the EFI) Take the blue "run" wire and cut it coming out of the bulkhead before it branches off

Use the bulkhead end to trigger a relay, and feed the relay off a large no12 fused/ breaker wire off the starter relay "big post." Connect the engine bay cut end to the load contact.