I believe this is a 4160 vac Secondary carb.
I'n new to Holley carbs. Last summer the imperial would not run or idle well, and it turned out to be the rear float valve had crud in it, and the high fuel level was leaking into the engine.
Got an Edelbrock carb kit locally, cleaned the fuel bowls and all is well.. ended up only using the float bowl gaskets at that time, the rest of the carb kit went on the shelf.
Car just quit while idling, and a puddle under the secondary throttle shaft...
Holley Carb, Wanting suggestions with reoccurring flooding
