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Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish

Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish

Universal Fit, 4-Barrel Spread Bore Carburetor Flange Type, Throttle Body Injection Style

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Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
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Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
Holley Sniper 550-869K EFI Quadrajet Master Kit, Gold Finish
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Part # 425550869K
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Details

Carburetor Flange Type:
4-Barrel Spread Bore
Injection Style:
Throttle Body
User Tunable:
Yes
Self Tuning:
Yes
Injectors Included:
Yes
Injector Size:
100 lb/hr @ 58.5 PSI
Intake Manifold Included:
No
CFM:
715 CFM
Venturi Quantity:
4
Fuel Pump Included:
Yes
Calibration Module Included:
Yes
Wiring Harness Included:
Yes
Fuel Pressure Regulator Included:
Yes
MAP Sensor Included:
Yes
IAC Motor Included:
Yes
TPS Sensor Included:
Yes
Color:
Gold
Hardware Included:
Yes
MFG. Part #:
550-869K
GTIN Code:
090127059005
Sold in Quantity:
Kit

Info

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!
 
  • 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 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
  • CFM: 715
  • 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
  • Throttle Bore: 1.375 Primary / 2.00 Secondary
  • Transmission: 700R4/200R4

Notes

Holley Sniper EFI Quadrajet Quick Start Guide (PDF)

Holley Sniper EFI Quadrajet Installation Instructions (PDF)

 

Important Messages:

  • This item ships directly from the manufacturer. It may take an additional 10 business days for Holley Sniper to ship this item.
  • Get FREE shipping when your order includes this item and exceeds $99! Ground shipping only in the contiguous US.
  • This item ships via Ground Shipping only. Expedited and Air shipping options are not available.
Some parts are not legal for use in California or other states with similar laws/regulations

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