Holley Sniper 2 EFI Polished 4150 Master Kit w/ 5" Handheld/ Fuel Pump/ PDM

Modernizing a carbureted engine with electronic fuel injection can improve throttle response, cold starts, and drivability in street performance applications. This Holley Sniper 2 EFI polished 4150 master kit provides a complete self-tuning EFI conversion for engines equipped with a 4150 square-bore 4-barrel carburetor flange while simplifying tuning, wiring, and fuel system integration.

Features and Benefits:
 - Self-tuning EFI conversion system
 - Fits 4150 square-bore flanges
 - Supports 650 naturally aspirated HP
 - Supports 575 boosted HP
 - Four 100 lb/hr injectors included
 - 5” handheld tuning display
 - Full-color, backlit display
 - Power Distribution Mod included
 - External internal EFI fuel pump included

Applications:
 - 4150 square-bore 4-barrel carburetor flange

The system uses an onboard calibration wizard that creates a self-learning base tune without requiring a laptop connection. Four integrated 100 lb/hr fuel injectors support engines producing up to 650 horsepower naturally aspirated or 575 horsepower with forced induction. The included color 5" handheld user interface allows setup, tuning, and real-time monitoring directly from the display while offering customizable layouts and a built-in GPS speedometer. The included Power Distribution Module centralizes power and ground management for cleaner wiring installation, while the external inline EFI fuel pump helps maintain consistent fuel delivery. Additional updates include hidden harness routing, redesigned injector connectors, a contactless magnetic TPS sensor, and revised throttle shaft geometry for smoother throttle response.

Specifications:
EFI System Type: Throttle Body Injection
Carburetor Flange: 4150 Square Bore
Injector Size: 100 lb/hr (x4)
Maximum NA Horsepower: 650 HP
Boost Capability: Up to 575 HP
Finish: Polished
Control Interface: 5” Handheld Display
Fuel Pump Type: External Inline EFI Pump
Power Distribution Module: Included

Please Note:
 - Additional fuel system components may be required depending on vehicle configuration.
 - Sniper 2 EFI software does not support nitrous control.
 - Always verify fuel system capacity and application compatibility prior to ordering.