Sniper EFI Stealth 4150 Black Finish Master Kit

The Sniper EFI Stealth 4150 Black Finish Master Kit from Holley represents a complete fuel injection solution engineered for serious hot rodders and engine builders seeking reliable EFI conversion without compromise. This comprehensive master kit eliminates guesswork during installation, delivering everything required to transition from carburetors to modern electronic fuel injection on compatible applications. Whether you're building a street machine, restomod, or performance project, this system brings cold-start reliability, cruise control compatibility, and tuning precision that traditional carburetion cannot match.

The Sniper EFI Stealth 4150 Black Finish Master Kit features Holley's proven sequential fuel injection architecture with integrated engine control electronics and a black-anodized aluminum 4150-style throttle body housing that blends seamlessly into traditional engine bays. The stealth design minimizes visual complexity while maintaining full diagnostic and tuning capability through Holley's TunerStudio software platform. The master kit format includes fuel pump, injectors, wiring harness, sensors, and intake manifold mounting provisions, reducing the need for custom fabrication and compatibility troubleshooting that plague partial conversion kits.

Builders working on V8-powered classics, street rods, and muscle car restorations benefit most from this all-in-one approach, particularly those seeking bolt-on installation with minimal custom wiring. The system pairs effectively with stock or upgraded fuel systems and supports both carbureted and previously EFI-equipped engine platforms. Installation requires mechanical competency and basic electrical knowledge; professional tuning via dyno or street calibration is recommended for optimal performance and drivability. Weighing 33.42 lbs and designed for standard underhood mounting, the Sniper EFI Stealth 4150 Black Finish Master Kit fits within typical hot rod and restomod engine compartment constraints.