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Home / Shop / Holley Sniper EFI Quadrajet™ - Classic Gold

Holley Sniper EFI Quadrajet™ - Classic Gold
Sniper EFI

Holley Sniper EFI Quadrajet™ - Classic Gold

Part # 550-869

$2,024.95

In Stock

The Sniper EFI Quadrajet™ is here to help with classic installs, perfect for not having enough hood clearance to mount an adapter or don’t want to replace your OEM spread bore intake. Our bolt-on spread bore electronic fuel injected throttle body system 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 with (4) 100 lb./hr. fuel injectors, built-in timing control, 3.5" LCD touchscreen, and much more. For power, this throttle body will support up to 500 HP naturally aspirated. In addition, 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 appearance installation. After you’ve installed your EFI, use our included 3.5" handheld to answer a few simple questions and your system will begin to self-tune with no laptop required. This can also be installed on marine applications, please refer to Tech Resources section for more information on the correct and safest way to install.

Features & Benefits
Integrated ignition timing control when paired with HyperSpark line of distributors and ignition components, along with Holley Dual Sync

Fits: Supports Up To 500 HP - 3.5 in. LCD Touchscreen - For Spreadbore Manifold

Installation note: For marine installations, a flame arrestor is legally required. We recommend Holley P/N 720-1 or 720-11 Flame Arrestor, along with Holley P/N 720-31 or 720-33 Flame Arrestor Vent Tube to ensure proper function, safety, and compliance.

In the box: Fuel Injectors, Throttle Position Sensor

Specifications

Accelerometer Support No
Boost Control No
CAN-BUS Support No
CFM 715
Coast Guard Approved Yes
Coil Per Cylinder Ignition Support No
Datalogging Support Yes
Dry Nitrous Control Yes
EGT Support No
Finish Classic Gold
Flange Style Spreadbore
Forced Induction Support Yes
Fuel Pressure 58.5 PSI
Height 3.28"
Ignition Timing Control Yes
Individual Cylinder Fuel Corrections No
Injector Size 100 lb/hr @ 58.5 PSI
Inlet / Outlet Size 9/16-18 Female O-Ring (AN 6)
Knock Retard Support No
MAP Sensor 2 Bar
Max Horsepower Rating 500 Naturally Aspirated
Multi-Stage Nitrous Control Yes
Progressive Nitrous Control Yes
Self-Tuning Yes
Throttle Bore 1.375 Primary / 2.00 Secondary
Traction Control Support No
Transmission 700R4/200R4
User-Tuneable Yes
Wet Nitrous Control Yes
e85 Support No

Product Video