Sniper EFI Sealing Plate

The Sniper EFI Sealing Plate by Holley (MPN 520-2) is a precision-engineered component designed for builders and tuners working with modern electronic fuel injection systems. This sealing plate serves as a critical interface between your intake manifold and EFI throttle body, preventing vacuum leaks and ensuring consistent air-fuel mixture delivery across the entire RPM range. Whether you're building a high-performance street engine, a weekend track car, or restoring a classic with modern EFI conversion, this Holley component eliminates one of the most common sources of idle instability and driveability issues.

Manufactured to Holley's exacting standards, the Sniper EFI Sealing Plate features a durable design that creates an airtight seal while maintaining proper throttle body alignment and sensor access. The compact footprint (7.2 x 3.8 x 7.4 inches) and lightweight construction (0.6 lbs) make installation straightforward without adding unnecessary mass to your intake system. The plate's precision machining ensures compatibility with Sniper EFI systems and similar throttle body configurations, eliminating air bypasses that would otherwise bypass your fuel injectors and confuse your engine control unit.

Quality gasket surfaces prevent leakage during thermal cycling, which is especially critical for forced induction builds where boost pressure amplifies any seal defects. This sealing plate is essential for anyone installing or maintaining a Holley Sniper EFI system, particularly for those looking to enhance performance and reliability in their builds.