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.

Holley 1850s are inexpensive, factory rebuilds are even cheaper, and swap meet 1850s are nearly free. Their 600-cfm, square-bore, vacuum-secondary design makes them a universal performer for mild ...

The original Holley Model 4150 carburetors were introduced over 30 years ago. While the now-classic design has withstood the test of time and outlasted most other competitive 4-barrels, inevitably the ...