1802 Edelbrock Thunder Series AVS Carburetor 500 CFM ~ Manual Choke
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. 
 
Pre owned but has had little use , so like new. Comes with original box.
Includes edelbrock 1/2 inch spacer and Calibration Kit. Missing Manual & Installation / tuning DVD