Quick Fuel Race Q Drag Race Carburetor
For competitive classes where every last hundredth of a second counts, these carburetors offer excellent performance, consistency, and tunability. For added versatility, Race Q carbs utilize a dual-pattern billet throttle-body, making them compatible with both 4150- and 4500-style flanges. Billet metering blocks with five-stage changeable emulsions, as well as, throttle bodies with roller bearing seals to provide smoother operation, less wear on shaft, and longer life. - Race style aluminum main body with upgraded downleg race boosters - Screw-In airbleeds that have been recessed and moved out of the air way for less restriction - 5 Emulsion billet metering blocks with screw-in bleeds for every circuit - Lightweight aluminum fuel bowls with internal baffles, raised roof, re-designed fuel entry orifice and built-in sight windows - 4-corner idle - Billet throttle body with roller-bearing sealed shafts that have been slabbed for added air flow, stainless steel throttle plates, and secondary adjustable cam bracket. Each throttle body is machined for both 4150 or 4500 style manifolds.
Part Type: Carburetor
Fuel Type: Gasoline
Application: Drag Race
Number of Barrels: 4
Choke Type: None
Fuel Inlet: Dual
Fuel Inlet Fitting Size: -6 AN
Secondary Type: Mechanical
Throttle Linkage Type: Universal
Ford Auto Trans Kickdown: No
Main Body: Aluminum
Booster Type: Down Leg
Screw-In Air Bleeds: Yes
Primary Venturi Diameter:
Base Plate: Billet Throttle Body
Base Plate Pattern: 5.16" x 5.62"
Primary Throttle Bore Diameter: 1-3/4"
Secondary Throttle Bore Diameter: 1-3/4"
Primary Metering Block: Billet Aluminum
Secondary Metering Block: Yes
Primary Fuel Bowl: Center Hung Float, Aluminum
Secondary Fuel Bowl: Center Hung Float, Aluminum
Externally Adjustable Floats: Yes
Fuel Bowl Sight Windows: Dual
Primary Accelerator Pump: 30cc
Secondary Accelerator Pump: 30cc
Primary Main Jets: 78
Secondary Main Jets: 84
Jet Extensions: No
Quick Change Jet Ports: Yes
Needle & Seat: .120" Viton
Idle Bleed: .070"
Intermediate Bleed: NA
Hi-Speed Bleed: .033"
Primary Power Valve: 4.5" Hg
Secondary Power Valve: 4.5" Hg
Primary Pump Nozzle Size: .033"
Secondary Pump Nozzle Size: .033"
Secondary Spring Color: NA
Finish: Tumble Polished
PCV Port: Yes
Vacuum Port - Timed (Spark): None
Vacuum Port - Full Vacuum: None
Manufacturer: Quick Fuel Technologies
Manufacturer's Part Number: RQ-850
Weight: 9.2 lbs.
Warranty: Quick Fuel Technology warrants to the original purchaser only that its new and remanufactured products shall be free from defects in material and workmanship for a period of 90 days from date of purchase. In the event of a defect in material or workmanship, QFT will, at its option, repair or replace the product, or any defective part or parts thereof, without charge to the original purchaser. This warranty does not apply to products that have been modified or altered, subjected to misuse, neglect, accident, improper installation or adjustment, dirt or other contaminants, water, corrosion, faulty repair or used in other than those applications recommended by QFT.
Quantity: Sold as Each