Holley Sniper EFI 550-869 Holley Sniper EFI Quadrajet
SKU: 90849044987

Holley Sniper EFI 550-869 Holley Sniper EFI Quadrajet

Sale price$809.98 Regular price$899.98
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Ships within 48 hours · Estimated delivery Jul 7 - Jul 12

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Description

Holley Sniper EFI 550-869 Holley Sniper EFI QuadrajetOverview: Are you tired of rebuilding the 50+ year old Rochester Quadrajet (Q Jet) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Introducing Sniper EFI Quadrajet. The first bolt on spread bore electronic fuel injected throttle body system that does not require any additional adapters, sealing plates, or intake manifold swaps! The Sniper EFI Rochester Quadrajet (Q Jet) system retains the same great features as the 4150 Sniper EFI

Overview:

Are you tired of rebuilding the 50+ year old Rochester™ Quadrajet® (Q-Jet™) on your classic Chevrolet, GMC, Buick, Oldsmobile, or Pontiac? Introducing Sniper EFI Quadrajet™. The first bolt-on spread bore electronic fuel injected throttle body system that does not require any additional adapters, sealing plates, or intake manifold swaps! The Sniper EFI Rochester Quadrajet™ (Q-Jet) system retains the same great features as the 4150 Sniper EFI version such as; four 100lb/hr Injectors, built-in timing control, a 3.5" full-color touchscreen, and much more! The throttle body will support up to 500 horsepower naturally aspirated. In addition to all of these great tried and true features, the Sniper EFI Rochester Quadrajet™ (Q-Jet) system will fit most stock air cleaners and offers multiple fuel inlet configurations that allow for a stock appearing installation!

Features:

  • Available in 3 Finishes - Classic Gold, Shiny and Black Ceramic
  • Designed to deliver the signature Rochester Roar at Wide Open Throttle!
  • Throttle body mounted ECU - no extra boxes to mount
  • Supports up to 500hp with Four 100 Lb/Hr Injectors!
  • Only 4 Wiring Connections Required! (Battery +, Battery - , Switched Ignition & RPM)
  • Integrated ignition timing control
  • Transmission provisions on throttle lever for TH350/TH400 and 200R4/700R4
  • Fits most stock Rochester Quadrajet (Q-Jet) air cleaners
  • Brake Booster adapter included, if required
  • Universal Throttle and transmission kickdown bracket included
  • 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 Throttle Position Senser (TPS)/ and Idle Air Control (IAC) 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
  • Requires external fuel pressure regulator, such as: 12-886 or 12-879
  • Certified to ISO 8846, SAE J1171 & United States Coast Guard Requirements for Ignition Protection & Fire Resistance. Making Sniper EFI the perfect choice for carburetor to marine fuel injection conversions!
  • A Flame Arrestor is REQUIRED for marine installations, such as part number, 720-1 or 720-13
  • Patent Pending

 

Application:

Year Make Model Submodel Engine Size
Universal

 

Specs:

Brand Holley Sniper EFI
CFM 715
Coast Guard Approved Yes
Emission Code 3
Finish Classic Gold
Flange Style Spreadbore
Fuel Pressure 58.5 PSI
Height 3.28"
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 9/16-18 Female O-Ring (AN 6)
MAP Sensor 2Bar
Max Horsepower Rating 500 Naturally Aspirated
Product Type Sniper 4BBL TBI Kits
Throttle Bore 1.375 Primary / 2.00 Secondary
Transmission 700R4/200R4
Warning California Proposition 65
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 90849044987

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Momof03
Louisville, US
★★★★★ 5
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I’ve gone through my fair share of bath puffs, and usually, they’re pretty disappointing—either they’re super thin or they fall apart before you even get a good lather going. These Amazon Basics ones are a total breath of fresh air because they’re actually nice and full. They have that dense, fluffy mesh that makes even a tiny drop of body wash turn into a ton of bubbles, which is exactly what you want. The size is perfect, and unlike those cheap, flimsy ones, these actually have enough texture to exfoliate your skin and get it feeling smooth without being too scratchy. They also have a sturdy little rope so you can hang them up to dry easily. I honestly liked these so much that I’ve already bought them a second time. If you’re looking for a simple shower upgrade that actually does its job, you really can’t go wrong with these.
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Reviewed in the United States on April 28, 2026
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STAR LIGHT
Alexandria, US
★★★★★ 5
A Spa Experience at Home
I absolutely love this bath loofah—it’s one of those small upgrades that makes a big difference in my routine. The texture is just right: firm enough to exfoliate and leave my skin feeling super smooth, but still gentle so it’s not irritating. It lathers up beautifully with just a little bit of body wash, making every shower feel like a mini spa session. The quality is great—no unraveling or falling apart after multiple uses, and the loop makes it easy to hang and dry quickly. I’ve noticed my skin feels noticeably cleaner and softer since I started using it regularly. If you’re looking to elevate your shower experience, this loofah is a must-have. Affordable, durable, and refreshing—I’m definitely buying more for backups and gifts!
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Reviewed in the United States on May 23, 2025
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Carolyn L
Massapequa, US
★★★★★ 5
Good Quality!
Much larger than I expected. Good quality. I have been using for a month now and it is holding up very well. Great value too. So much better than cheap dollar store versions I have bought in the past.
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Reviewed in the United States on January 8, 2026
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Gary Feit
Massapequa, US
★★★★★ 5
Good product.
Really good. Would buy again.
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Reviewed in the United States on March 6, 2026
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Paul D Benjamin
Los Angeles, US
★★★★★ 4
Good but small
Does a great job but they could be bigger to be more effective.
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Reviewed in the United States on May 16, 2026

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