Carburetors with vacuum lines are still found on classic vehicles and small-displacement engines — but what is the vacuum actually used for? Let's take a look.

The carburetor became too old school and inefficient compared to fuel injection systems. This was the last vehicle in mainstream USA to champion it.

The Better Half VW conversion produces approximately 30 horsepower at 3400 rpm with standard 92mm cylinders, though builders can increase power to 37 horsepower or more by using larger bore cylinders.

Constantly tired or struggling with stubborn weight Our Expert shares the 7 key signs that your metabolism is out of balance and how your body signals its time for a metabolic tune-up ...

These days, most new vehicles only come with a couple of different engines. But the '60s and '70s were filled with a plethora of different options.

How a rare muscle car utilized Chevrolet's COPO system to bypass factory engine limits, resulting in a factory-built, ...

A new study suggests that cutting carbs isn't always better for your health—and that the quality of those carbs matters more Low-carb and low-fat diets help lower your risk of coronary heart disease ...

Chrysler may have trademarked HEMI, but the Detroit carmaker did not invent hemispherical engines, which appear in numerous cars from Europe and the U.S.

Holley EFI’s Terminator X Bluetooth Module enables full wireless tuning and real-time engine monitoring for Terminator X and ...

Both low-carbohydrate and low-fat diets can be heart healthy, but it depends on what kind of foods you're eating, according to a new study. In the study, published Feb. 11 in the flagship journal of ...

Spain might be famous for flamenco, paella, and architectural masterpieces, but the country has also produced some genuinely ...