Sniper EFI IAC Adapter

The Holley Sniper EFI IAC Adapter (part number 543-122) is an essential component for builders and technicians upgrading carbureted or older fuel-injected engines to Holley's Sniper EFI system. This remote-mounted adapter bridges the gap between modern electronic fuel injection architecture and classic engine bay layouts, making it ideal for street rods, restorations, and engine swaps where space constraints or aesthetic preferences demand alternative IAC (Idle Air Control) positioning.

Built to Holley's OEM specifications, the Sniper EFI IAC Adapter features precision-machined aluminum construction that maintains critical air passage tolerances required for consistent idle control and smooth low-rpm transitions. The adapter's compact design allows flexible mounting away from the intake manifold while maintaining proper flow dynamics and sensor responsiveness. This durable construction ensures reliable performance across a wide range of ambient temperatures and fuel system pressures typical in street and track applications.

This adapter is particularly valuable for enthusiasts installing Holley Sniper EFI on engines where traditional IAC placement is not feasible. Whether retrofitting a muscle car, vintage truck, or custom hot rod, this adapter ensures proper idle stabilization without compromising underhood organization. It is designed to eliminate interference with aftermarket intake manifolds, headers, or custom engine bay modifications.