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Holley Sniper EFI Super Stealth 4150 - Classic Gold

550-878
If you're looking to make some big power, the Super Sniper Stealth is made for you! Holley's Sniper EFI Super Sniper Stealth 1250 is the best way to convert your carbureted engine to fuel injection with just 4 simple connections required. Super Sniper can support up to 1250HP boosted with 8 100 LB/HR Injectors. With a Stealth 1250 system, you get that carburetor styling but the functionality of a Sniper! This 4-barrel system features a single pattern bolt on design built to fit 4150 flange manifolds. The Super Sniper Stealth ECU is capable of fuel map self-learning and ignition timing control, improving idle stability, drivability, and wide-open throttle horsepower. Additionally, this Sniper kit also includes transmission kick down provisions for GM TH350/400, 200R4/700R4, and Ford C4/C6 applications!

We want everything to be as simple as it can be for you! Sniper kits are built and designed to be installed at home in your garage or driveway with limited tools and the support of Holley's comprehensive installation manual and videos. An afternoon in the garage and you will be enjoying improved engine performance, better MPG's and easier starting. After the simple installation it's time to let your Sniper begin the self-tuning process. Our user-friendly calibration wizard allows you to just answer a few questions about your engine and the system will begin self-tuning with no laptop required. You don't have to be a computer wiz or specialize in tuning to use a Sniper EFI system! Use the high resolution 3.5" full color touchscreen for tuning and gauge displays.
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Description

 

Specifications
CFM: 870
Finish: Classic Gold
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: 1250 HP
Transmission 700R4 / 200R4/ Ford C4/C6 / TH350

Features:
Bolt on 4150 Flange Carburetor Replacement
Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
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!
Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays
Throttle body mounted ECU – no extra boxes to mount
Supports up to 1250hp with Eight 100 Lb/Hr Injectors!
All of the wiring exits below the rear fuel injector cover, for a completely stealth installation.
Timed spark part for vacuum advanced distributors located under the front fuel bowl, for easy access to the distributor.
Programmable inputs and outputs
Three Programmable 0-5V Sensor Inputs for Oil/Fuel/Dome or Nitrous Pressure Sensors
Six Programmable Ground Outputs
One +5v Reference Output - +5V Power Supply for 0-5v Sensors
One Sensor Ground – Ground supply for 0-5v Sensors
Air entry is machined to fit most stock style air cleaners with air cleaner locator provisions.
External fuel pressure regulator required, set to a base pressure of 58.5 PSI, such as 12-886.
Integrated ignition timing control
The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides real-time Fuel Map Learn!
OEM Style TPS/IAC, for years of dependable service.
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
Also available in black and shiny finishes

Emissions
The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles: 

This part is legal for use on Uncontrolled (Non-Emissions Controlled) Vehicles or Racing Vehicles.

1965 and older U.S. manufactured California Certified vehicles
1967 and older U.S. manufactured Federally Certified vehicles
1967 and older Foreign manufactured vehicle
Racing Vehicles are vehicles that are used exclusively for racing or other forms of competition that are not registered and that may never be used on the street.

Details

  • 550-878
  • 550-878
  • Holley
  • New

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Shipping Information

  • Item Requires Shipping
  • 9.0 lbs.
  • W11.0000” x H8.0000” x L12.2500”
  • Free Basic Shipping
  • FREE Fast Priority Mail shipping to the USA and it's territories on ALL Holley products

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