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Holly Sniper EFI Holley Stealth 4150, Shiny 550-870

Holly Sniper EFI Holley Stealth 4150, Shiny 550-870
$2,231.99 ea
NEWARRIVING SOONEstimated Ship Date 03/18/2024 (If Ordered Today)24 Available from HOLLEY PERFORMANCE PRODUCTS as of 02/25/2024
Model: 4008359
STANDARD
DELIVERY
The Sniper Stealth 4150 EFI system from Holley features 4, 100LB/HR Fuel Injectors capable of supporting up to 650 HP naturally aspirated or 600 HP on forced induction applications. The Sniper Stealth 4150 ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower! Did we mention that the Stealth 4150 also includes transmission kick down provisions for GM TH350/400, 200R4/700R4 and Ford C4/C6 applications. For a complete installation, Master Kit part # 550-870K includes a complete fuel system with an external fuel pressure regulator preset to 58.5psi, 20ft of 3/8" Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware, and bulkhead fitting to return fuel into the tank!
Features:
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
  • Integrated ignition timing control
  • Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • Included clamp-on oxygen sensor kit for 2.25" exhaust ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • OEM Style TPS/IAC for years of dependable service.
  • Bolt on 4150 Flange Carburetor Replacement
  • Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • An external fuel pressure regulator is required, set to a base pressure of 58.5 PSI, e.g. 12-886.
  • Simple Calibration Wizard (answer a few questions about your engine and it creates the base map, then starts tuning on its own!) - NO laptop required!
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
  • vailable in 3 finishes: Shiny, Black and coming soon, Gold
  • All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Throttle body mounted ECU – no extra boxes to mount
Part # 534-247 is required to complete installation.
Installation Notes:
Part # 534-247 is required to complete installation.

Downloads:

Download Name File Size
techlibrary_200r623a-7.zip1.49MB
199r11970.pdf1.95MB
199r11971.pdf5.33MB

Videos:

Specifications:

CFM 870
Emission Code 3
Finish Shiny
Flange Style 4150
Fuel Pressure 58.5 PSI
Height 3.28"
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 3/4-16 Female O-Ring (AN 8)
MAP Sensor 2Bar
Max Horsepower Rating 650 Naturally Aspirated
Model 4150 EFI Conversion Throttle Body
Part Type Fuel Injection Throttle Body Adapter
Product Type Sniper Stealth EFI 4150
Proposition 65 www.P65Warnings.ca.gov
Transmission 700R4/200R4

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Holly Sniper EFI Holley Stealth 4150, Shiny 550-870:
Classic Chevy 2024