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Carburetor, Thunder AVS, 500 cfm, Square Bore, Manual Choke, 4-Barrel, Single Inlet, EnduraShine
These carburetors have all of the performance features of Edelbrock's Performer carburetors, with an added twist--the Qwick Tune secondary air valve. This air valve can be easily adjusted to kick in the secondaries early or late--no extra springs are needed. These CNC-profiled, ball-burnished aluminum carbs feature black accented hardware and GM/AMC throttle linkage. Also included with every Edelbrock carburetor is an owner's manual. These manuals consist of two sections: Section 1, Theory of Operation and Tuning Procedures, will help you to develop your own individualized calibration. Section 2, Tuning Procedures, will take you through a step-by-step procedure that will enable you to achieve a desirable calibration. For added ease of tuning, a calibration reference chart for your model of carburetor will be included.
New or Remanufactured:
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Calibrated for dual-quad applications. Please see the charts and guides tab for a comparison of square bore vs spread bore. Brake booster fitting not included.