QFX 4700 Carburetor 1.900V

Serious drag racing demand a serious drag racing carburetor, and the QFX-Series stands as the flagship model in QFT's lineup.

Raised air horns improve entry angle into the venturi while ensuring undisrupted flow over the air bleeds.

Annular boosters with CNC-machined billet aluminum inserts provide increased air flow, a stronger signal, and less turbulence.

QFX carbs offer unparalleled fuel atomization with annular boosters specific for either gas, methanol, or E85 fuels.

Five-emulsion billet metering blocks and four-corner idle circuits offer flexible tunability that today's high-horsepower engines demand.

To cover a broad range of applications, methanol- and E85-compatible models, as well as two- and three-circuit fuel systems, are available.

Ready to run out of the box, the QFX-Series carburetor will help you get to the winner's circle.

Features:

• QFX aluminum main body w/raised venturi
• Billet aluminum metering blocks with screw in restrictions
• Aluminum fuel bowls with dual sight windows and fuel inlets
• Nitrophyl® Floats (notched rear) and jet extensions
• Viton .130" Needles and Seats
• Billet Aluminum annular booster inserts
• QuickLink™ adjustable secondary opening adjustment
• Hand assembled and engine tested