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 ...

The carburetor sitting on your vintage Mustang can be a finicky device. It has minute passages that air and fuel travel through to feed the engine the fuel it demands based on load, rpm, and so forth.

Choosing a high-performance carb ranks right up there with ouija boards, tarot cards, and dice tables in terms of success potential. There's really no magic involved, but the incredible variety of ...