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Quick Fuel Technology FX-4700 QFX Series 1050 CFM Carburetor 2-Circuit Mechanical Secondary

(Ford F-150 1975-79, 1984-87, Mustang 1964-73, 1983-85, F-250 1955-66, 1973-79, 1983-87, Bronco 1984-87, Thunderbird 1955-76 + 581 more models)

Manufacturer

Picture for manufacturer Quick Fuel Technology

Part Number

FX-4700
12 reviews
Sale Price

$1,749.95

In Stock (6)

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Usually delivered within 2 days

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Product Details

The Quick Fuel Technology FX-4700 QFX Series carburetor delivers competition-grade performance with a 1050 CFM flow rating designed for high-horsepower racing applications. This 4700 series carburetor features a 2-circuit design with mechanical secondary operation, making it ideal for engines requiring maximum airflow and precise fuel delivery.

Premium Construction Features:

  • QFX aluminum main body with raised venturi design for improved airflow efficiency
  • Billet aluminum annular booster inserts for superior atomization and throttle response
  • Billet aluminum metering blocks with screw-in air bleeds and restrictions for precise tuning
  • Aluminum fuel bowls with dual sight windows for easy fuel level monitoring
  • Dual fuel inlet capability for high-volume fuel system compatibility

High-Performance Components:

  • Viton .130" needle and seat assemblies for reliable fuel control and chemical resistance
  • Nitrophyl floats with notched rear design and jet extensions for consistent fuel metering
  • QuickLink adjustable secondary opening system for customizable power delivery
  • Hand-assembled and engine-tested for quality assurance

Each FX-4700 carburetor is meticulously assembled by hand and tested on a running engine to ensure optimal performance right out of the box. The combination of precision-machined components and advanced engineering makes this carburetor an excellent choice for bracket racing, Pro Street builds, and serious street/strip applications demanding reliable wide-open throttle performance.

Products specifications

Fits

Ford F-150 1975-79, 1984-87, Mustang 1964-73, 1983-85, F-250 1955-66, 1973-79, 1983-87, Bronco 1984-87, Thunderbird 1955-76, F-350 1955-79, 1983-87, Galaxie 500 1962-64, 1968-74, F-100 1955-66, 1973-76, 1979, Fairlane 1955-70 + 577 more models

Barrel Quantity

4

Barrels

4

Billet Color

Red

Booster

Annular

Brand

Quick Fuel Technology

Carburetor Use

Professional Race

Category

Air and Fuel Delivery

CFM

1050

Choke

None

Choke Type

None

Circuit

2

Condition

NEW

Cubic Feet Per Minute Rating

1050

Emission Code

4

Finish

Shiny

Flange Type

Square/4150

Fuel

Gasoline

Fuel System

Carbureted

Gasket Or Seal Included

Yes

Grade Type

Performance

High Speed Air Bleed

31

Idle Air Bleed Size

63

Linkage Attached

Yes

Marine Use

No

Material

Aluminum

Model

FX Series

Part Type

Carburetor

Primary Main Jet

84

Primary Power Valve

35

Primary Pump Nozzle Size

35

Product Type

Carburetor

Secondaries

Mechanical

Secondary Main Jet

92

Sub Category

Carburetion

Supercharged Application

No

Throttle Bore

2.000 inch

Warning

California Proposition 65

Warranty

Manufacturer's Limited 90 Day Warranty

Good price, order filled quickly.

Price was better than other sources. Free shipping was great!!!!

Keep up the good work

Great pricing and fast delivery

I felt pretty satisfied with the parts that I got. I thought I was going to get them a little sooner but it was fine.

Exactly what I was expecting

Easy to use site, table had good reviews and is very reasonably priced

Quick shipping, lowest prices.

They have the best prices and very fast shipping

Thanks again! Best prices I found on the web! Fast shipping Would definitely buy from again!

In a rush to get my car up and running, Autoplicity had the best price on the items I needed, and in stock as well as shipped quickly. Just what I was looking for, thanks!

Great price. Minor problems with shipping because of UPS (dropped box and broke part, late delivery). Autoplicity sending me out replacement part.

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