Holley came out with the first modular carburetor, the 4150, back in '57. By '65, the 100,000,000th carburetor came off the Holley assembly line. Today, Holley still makes the 4150, heck, it even ...

Carb tuning is a familiar procedure to old racers, something practiced from an early age, when anyone with a good ear and a screwdriver would put a tune to their wheels on a Saturday afternoon. These ...

Getting to the specifics in the case of our Laguna, it was only when the car was not straight ahead and wide open that the carb's performance inadequacies made themselves known. Starting with its ...

The easy way to tell a 2100 from a 2150 is the rear edge of the base of the carb. Supposedly, the 2100s have a rounded rear edge like this. And a 2150 will have a flat rear edge of the base of the ...