Holley came out with the first modular carburetor, the 4150, back in '57. Today, Holley still makes the 4150-heck it even makes hopped-up versions for everything from drag racing to rock crawling.

The most ubiquitous speed part on the planet has to be the Holley four-barrel carburetor. While millions have been produced, there are a few that are special. In our case, we've been harboring a ...

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 ...