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

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 adding hands-on tuning and monitoring through an included 5" handheld display.

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
 - External inline EFI fuel pump
 - Integrated GPS speedometer

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 color 5" handheld user interface allows setup, adjustment, and real-time monitoring directly from the display while offering customizable layouts and an integrated GPS speedometer. An external inline EFI fuel pump, regulator, filters, fittings, and fuel hose are included to help simplify installation. 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: Not Included

Please Note:
 - This kit does not include a Power Distribution Module (PDM)
 - 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.