SKU: 22972379158

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 11 - Jul 16

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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: 22972379158

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DsD
Cuba, US
★★★★★ 5
Where has this been my whole life
Set name: Face - 1.7 oz., Set name: Face - 1.7 oz.
Let me give you some background. I’m middle eastern. That means I tan well but have two different skin tones; my January skin and my July skin. I wear a watch and I’ve been out of the sun since September. My tan hasn’t totally faded but the lighter band, that’s my real skin color. That’s how I want to be all over. I always try to make better choices in my skin products. I have tried so many mineral based sunscreens for my face and body but I usually end up returning to a chemical based one for several reasons. HOWEVER, I have finally found the product I’ve been searching for. Blue Lizard leaves no white cast on my skin. It’s easy to rub in. It also does not get trapped in my dense, black eyebrows the way other products did. It would gross me out and look like I had flakes in my eyebrows. I just spent the week at Universal Studios and I did not burn. I didn’t tan either, which is great. Tanning is also a sign of sun damage. Chemical or mineral sunscreens often prevent sunburn but I still tan. I don’t want either. I am sold and will continue to buy this product. I feel great about that it has safer and better quality ingredients.
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Reviewed in the United States on April 4, 2026
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D. Kraus
Belleville, US
★★★★★ 5
Works well but oily.
Set name: Face - 1.7 oz.
This works well but is not ideal if you want to wear under makeup. It has a very oily consistency. Price is good.
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Reviewed in the United States on November 1, 2025
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RDL
Port Orchard, US
★★★★★ 3
packed poorly, no respect for customer
Set name: Face - 1.7 oz.
Nice product Poor packaging Wonder if grey market
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Reviewed in the United States on June 6, 2026
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Mackenzi Husted
Lowell, US
★★★★★ 5
Safe for baby
Size: 6 Fl Oz (Pack of 2)
Safely and smoothly applied. Baby had no burns. High quality product.
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Reviewed in the United States on November 21, 2025
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Dean
San Leandro, US
★★★★★ 5
Will buy agian
Size: 6 Fl Oz (Pack of 2)
We love this it works amazing for the pool and you get what feels like a ton of product
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Reviewed in the United States on January 8, 2026

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