Manual Choke Vacuum Secondaries-4160
- Gold Dichromate finish for corrosion resistance and classic Holley looks
- Performance upgrade for stock to mildly modified vehicles. Originally developed for the 1965 Chevelle 425hp 396 Chevelle and inducted into Hot Rod Magazine Speed Parts Hall of Fame!
- Universal calibration for easy bolt-on performance
- Manual choke (cable actuated - hand controlled) for precise cold start control
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