EFI Conversion, Holley Sniper II, Base

Sniper 2 EFI Base Conversion Kit by Holley®

Self-tuning EFI combines a compact throttle-body ECU with touchscreen setup and smoother throttle action.

This Holley® Sniper 2 EFI kit replaces a compatible 4150-flange four-barrel carburetor with self-tuning electronic fuel injection. Its throttle-body-mounted ECU keeps the installation compact, while improved electrical-noise resistance, a contactless throttle-position sensor and smoother throttle action support consistent operation. Four primary connections handle battery power, ground, switched ignition and engine-speed input. The included 3.5-inch touchscreen guides setup without a laptop, and the wideband oxygen sensor supplies fuel-mixture feedback. The system supports up to 650 HP naturally aspirated or 575 HP with boost and offers ignition control with compatible equipment. Choose shiny or black. This base kit supplies the EFI hardware and control components, not the fuel-delivery package. An appropriate external pump, regulator and fuel plumbing are required; the regulator is not built into this Sniper 2 throttle body.

• 4150-flange four-barrel carburetor replacement • Supports up to 650 HP naturally aspirated • Supports up to 575 HP with boost • Throttle-body-mounted ECU and contactless TPS • 3.5-inch touchscreen and wideband oxygen sensor • Black or shiny finish options • External fuel-delivery system required