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Return to Parts List Category : R- Quick Fuel Technology QFT FX-4700 QFX CARBURETOR - 1050CFM $1400.95 1050CFM Gas QFX -1.710" venturi X 2.000" throttle bore - 2 Circuit - The ultimate drag race carburetor is the QFX with it's new raised venturi design. Improved throttle response and increased consistency are all part of the package. Whether you use a throttle stop or run heads-up this carburetor will help you get to the winner's circle. QFX All new 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 External Linkage Hand assembled and engine tested