19+ Holley Vacuum Secondary Gif. Pretty typical vacuum secondary holley rebuild. Find great deals on ebay for holley vacuum secondary.
I always thought that the double pumpers always came with mechanical secondaries. Expedites changing of vacuum spring. This particular carb is a holley 80457s vacuum secondary aluminum main body.
Quick change cover, vacuum diaphragm spring, plastic, black, holley, kit.
Features • vacuum secondaries allow use on wide variety of vehicles • hot air choke • single. Holley equips all vacuum secondary carburetors from the factory with the heaviest. Holley has this info in their rebuild books, but i can check for you if needed. Newer holley carbs come with power valve blow out protection.