CARBURETOR,4150,DRAG RACE,ALUM,850CFM,MS,AN

Brand New Holley Quick Fuel Q-Series Carburetor, Red Billet & Shiny Finish, 850 CFM, Drag Racing, Annular Booster, 4150 Model (Part #Q-850-AN).

Q-Series carburetors are purpose-built for the dragstrip. Equipped with notched floats & secondary jet extensions. High-flow aluminum main body is lightweight & features recessed air bleed cavities for improved air flow. Die-cast venturi are machined to exacting tolerances for outstanding throttle response. Billet metering blocks ensure a uniform fuel curve, while throttle-bodies enhance durability. QFT QuickLink system makes adjusting the secondaries easy on models equipped with mechanical secondaries.

NOTE: This carburetor has the square bore flange bolt pattern. It replaces Holley, Edelbrock, Carter AFB & Autolite style carburetors with 5 3/16" x 5 5/8" bolt pattern. If you have a spreadbore style intake manifold, an adapter is needed to install this carburetor, similar to Mr. Gasket #1932.

Features:   

• Lightweight aluminum main body
• Aluminum fuel bowls with dual sight glass windows
• Billet metering blocks with 4-corner idle system
• Changeable idle feed & power valve channel restrictions
• Billet aluminum throttle body provides exceptional precision & strength
• PTFE coated & sealed shafts

Specs: 

• Barrels: 4
• Billet Color: Red
• Booster: Annular
• Brand: Quick Fuel
• Carburetor Use: Performance & Race
• CFM: 850
• Choke: None
• Circuit: 2
• Finish: Shiny
• Fuel: Gasoline
• Fuel System: Carbureted
• High Speed Air Bleed: 33
• Idle Air Bleed Size: 73
• Marine Use: No
• Material: Aluminum
• Model: Q-Series
• Primary Main Jet: 76
• Primary Power Valve: 45
• Primary Pump Nozzle Size: 32
• Product Type: Carburetor
• Secondaries: Mechanical
• Secondary Main Jet: 84
• Supercharged Application: No
• Throttle Bore: 1-3/4"

You can view and download the complete assembly instruction booklet here.