There probably is not a mathematical formula complicated enough to calculate how many perfectly good Holley carbs have been tossed aside in favor of newer models, just because they needed a rebuild.

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.

It was bound to happen. There you are sitting in your recliner after a hard day of wrenching in the garage when your sweet little daughter comes up to you with a particularly curious look in her eye.

Recently while on the AMSOIL Great American Circle Track Tour, Bob Bolles and I stopped by Tour sponsor Holley's corporate headquarters in Bowling Green, Kentucky. While there, we got a special treat ...