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Ships within 48 hours · Estimated delivery Aug 3 - Aug 8
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Description
Holley Sniper EFI Quadrajet Self-Tuning Fuel Injection System # HO550-869KHolley Sniper EFI Quadrajet Self Tuning Fuel Injection System # HO550 869K Features: 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
Holley Sniper EFI Quadrajet Self-Tuning Fuel Injection System # HO550-869KFeatures:
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!
Complete fuel system includes 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!
Self-tuning ECU means you dont 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
Shipping Notes
- Free Standard Shipping on $100+ Orders to the USA.
- Except Preorder products are shipped in 48 hours.
- Delivery to the USA:
- 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
4.2 ★★★★★
Based on 19 reviews
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Product Reviews
★★★★★ 4
Looks great.
Nice quality with sturdy hardware. Size could be a little larger.
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Reviewed in the United States on August 30, 2025
★★★★★ 5
Great addition to my sewing table!
I ordered two of these to give me a little more room on my sewing table. One for the backside and one for the left side. Worked out great! Very sturdy and not hard to install (followed directions). I just extended when I need room and fold when not in use. I would recommend these to anyone who just needs a little more table/room.
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Reviewed in the United States on May 12, 2020
★★★★★ 3
Not very sturdy
The oak that this is made of is very nice. The little bit of extra counter space is nice. The problem is the bracket to hold it up is kind of small and flimsy, so the shelf won't bear much weight. It will be ok for putting light things on. Also had a problem getting it to hang flat in the down position.
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Reviewed in the United States on February 22, 2022
★★★★★ 5
A good product at a good price. this is easy to install, and very sturdy.
This will expand our counter space in our camper, it is very sturdy and well built, solid wood, and a nice hinge.
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Reviewed in the United States on December 13, 2023
★★★★★ 1
No quality control.
Look at other options. Received with hinge already attached to the wood, at an angle. Tried to contact seller, no response. I fixed it myself. Rather than having hinge attached they should just let the buyer install the hinge. Made in Vietnam.
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Reviewed in the United States on November 22, 2025
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