Just recently, we received an e-mail on the subject from another carburetor expert, our old friend Larry Fulton (Automotion, (406) 453-5395). Here's what he had to say. I've got to give you my two ...
Could you please tell me if the Holley carb in these photos has mechanical or vacuum secondaries? I don't know much about these things. No time like the present to learn, Arron. If, as per your photos ...