Item # 22746 BRAND: Holley

Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish 550-511K

Holley Sniper 4 Barrel Fuel Injection Conversion - Self-Tuning Master Kit + Handheld EFI Monitor - Black Ceramic Finish
Holley Sniper 4 Barrel Fuel Injection Conversion - Self-Tuning Master Kit + Handheld EFI Monitor - Black Ceramic Finish
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Holley Sniper 4 Barrel Fuel Injection Conversion - Self-Tuning Master Kit + Handheld EFI Monitor - Black Ceramic Finish

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Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish 550-511K

Product Overview:

Description

Holley just brought EFI within range – introducing Sniper EFI master kits! It's economically priced so you can have all the benefits of EFI and still have money to finish or upgrade the rest of your ride! Perfect for street rods, muscle cars, off road trucks or nearly any carbureted vehicle. The Sniper EFI master kit contains the most complete EFI fuel system on the market. Everything is included to completely plumb your fuel system including; 20 feet of 3/8" EFI Hose, in-line fuel pump, post and pre fuel filters, return bulkhead, and all of the necessary fittings and hardware. Put an end to cold start issues, hesitations, vapor lock, and flooding. Upgrade to Sniper EFI and get the tactical accuracy of EFI today!

Features:

  • Dual Pattern bolt on carburetor replacement, designed to fit 4150 Flange & Spread Bore manifolds - (Spread Bore Sealing Plate Part #9006 is recommended)
  • Throttle body mounted ECU – no extra boxes to mount
  • Supports up to 650hp with Four 100 Lb/Hr Injectors!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Includes complete fuel system consisting of; 20ft of 3/8” Vapor Guard Fuel Hose, Fuel Pump, Filters, necessary hardware and bulkhead fitting to return fuel into the tank!
  • Internal fuel pressure regulator eliminates the hassle of plumbing an external fuel pressure regulator (Preset to 58.5 PSI)
  • Integrated ignition timing control & coil driver
  • High Resolution Full Color Touchscreen for Initial Setup, Tuning, and Gauge Displays.
  • 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!
  • Self-tuning ECU means you don’t have to be a computer/tuning wiz to have EFI!
  • The included Genuine Bosch LSU 4.9 Wideband Oxygen Sensor provides realtime Fuel Map Learn!
  • OEM Style TPS/IAC and Fuel Pressure regulator, for years of dependable service.
  • Included clamp-on oxygen sensor kit ensures a leak free oxygen sensor installation, with Stainless Steel T-Bolt clamps and a Stainless Steel (Weldable) oxygen sensor flange
  • Patent Pending

In the Box

Guides & Accessories

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Questions & Answers

Will this work for a boost application

Asked by: Ritchey
We apologize for the confusion. We would have to advice you to contact Holley directly regarding this as these items drop ship. They can be reached by calling 866-464-6553.
Answered by: Kelly H
Date published: 2022-02-14

What about the fuel pump? Will my old mechanical one work?

Asked by: CDHH
We apologize for the inconvenience as well as for the confusion. These drop ship directly from the manufacturer. We would have to advise you to speak with them directly on this. They can be reached by calling: 866-464-6553
Answered by: Kelly H
Date published: 2021-12-02

Mad ignition is ok do I have to change springs in it for advanced timing and a 400 trans ok

Asked by: Lanny
Using the timing control is optional with the Sniper EFI kit. The instructions cover both how to install the system with and without timing control. If timing control is used the distributor advance you need to be locked out https://documents.holley.com/199r11031r.pdf
Answered by: Kelly H
Date published: 2021-03-13

is this the new Sniper II set up i am seeing advertised on social media

Asked by: Greg
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Holley Sniper EFI Self-Tuning Master Kit - Black Ceramic Finish 550-511K
$1,589.95
In Stock