Holley 550-872K Sniper Stealth 4150 Self-Tuning Fuel Injection System Master Kit
510-550-872K
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Master Kits
Holley 550-872K Sniper Stealth 4150 Self-Tuning Fuel Injection System Master Kit Features:
- Holley 4150 flange EFI carburetor replacement
- Supports up to 650 naturally aspirated HP or 600 forced-induction HP using (4) 100 lbs./hr Injectors
- 870 CFM flow rate
- All system wiring exits below the rear fuel injector cover, for a complete stealth installation and appearance
- 2.5 Bar MAP sensor
- Integrated ignition timing control
- Throttle body mounted ECU
- (4) wiring connections required (Battery +, Battery -, Ignition, RPM)
- High-resolution color touchscreen controller
- Calibration wizard tunes ECU without the use of a computer or extensive engine tuning knowledge
- Genuine Bosch LSU 4.9 wideband oxygen sensor provides realtime fuel map learn
- OEM-style throttle position sensor (TPS) and idle air control (IAC)
- 2.500 in. clamp-on oxygen sensor kit allows easy integration into older exhaust systems
- High-pressure fuel crossover line included
- Complete fuel system including 20 ft. of 3/8 in. Vapor Guard Fuel Hose, external fuel pressure regulator, fuel pump, filters, necessary hardware and bulkhead fuel line return fitting
- 3.280 in. overall height
- -8 AN (3/4-16) female O-ring inlet/outlet
- Kickdown provisions for GM: TH350, TH400, 200R4, 700R4 Ford: C4, C6
- Compatible with Holley Ultra XP Carburetor drop base air cleaners as well as most stock-style air cleaners with air cleaner locator provisions
Installation Notes:
Sniper Stealth 4150 EFI requires an external fuel pressure regulator (sold separately) that is capable of a base pressure of 58.500 PSI.
For Troubleshooting Tips setting up your New Holley Sniper EFI System, please see this helpful video from Holley Performance.
Specifications:
Is the kit complete with everything I would need .
Will this system work on 572 cu. In. Gm crate engine
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