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 ...

A case in point is this adjustable metering block derived from the stock metering block for Holley's PN 7448-350 two-barrel (2-bbl) carburetor. This unit was originally designed as a 350-cfm Ford ...

Time-lapse magic returns from Hagerty—the number one insurer of classic cars—this time involving the teardown of a Holley carburetor. Before the days of fuel injection, these babies were essential for ...

In the world of performance, there never has been an equal to the Holley four-barrel carburetor thanks to its innovative design that was born for the racetrack, loved on the street, and used in more ...

There are at least two different primary metering block gaskets for a typical 4150 and many 4160-style Holley carburetors. We’ll use the very popular 600 cfm Holley vacuum secondary, commonly known as ...