Quick Fuel FX-4712 QFX Series 1250cfm Carburetor 1.900 Venturi

Quick Fuel Part Number: FX-4712

UPC: 849804000331

CFM: 1,250

Fuel: Gasoline

New or Remanufactured: New

Number of Barrels: 4

Carburetor Flange: Dominator

Choke: None

Secondary Type: Mechanical

Fuel Inlet: Dual

Carburetor Finish: Tumble polished

Ford Kickdown: No

Booster Type: Annular

Throttle Linkage Type: Universal

Carburetor Height (in): 3.500 in.

Quantity: Sold individually.

Notes: 1.900 in. venturi diameter with 2.125 in. throttle. Fuel inlets are 7/8-20 in. thread.

These Quick Fuel QFX-Series carburetors feature an all-new die-cast aluminum main body, which has a lengthened venturi section for greater midrange torque and better airflow. The annular booster venturis are precision die-cast with CNC-machined billet aluminum inserts, providing smoother and more refined air entry, a stronger vacuum signal, less turbulence, and improved fuel emulsion for better combustion. The Quick Fuel QFX-Series carburetors use red anodized billet aluminum CNC-machined metering blocks featuring 3-circuit metering (gasoline carburetors), changeable emulsion, idle feed, and intermediate bowl and feed discharge. Next, the die-cast aluminum fuel bowl combines high strength with significant weight reduction. They feature dual threaded fuel inlets and outlets and dual sight glass holes to easily set the float levels. The Quick Fuel QFX-Series carburetors feature Quick Fuel's external linkage with four different links to select the amount of primary throttle opening before the secondaries open: moderate progressive (25 percent), medium progressive (40 percent), full progressive (50 percent), and 1:1.