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Adjustable Part Throttle Kit, Quadrajet M4 Series, Kit

JET Quadrajet M4 series adjustable part throttle kits provide everything necessary for you to have easy access to the adjustable part throttle feature in your Rochester Quadrajet carburetor. They take approximately 30 minutes to install and allow you to adjust the part throttle setting on the primary metering rods. This can eliminate part throttle flat spots and off-the-line hesitation by simply turning a screw. The best part is, you don't have to take apart the carburetor every time you want to adjust the part throttle.