Tuning a carburetor-equipped engine to perform its best with the reformulated unleaded gasoline of today can prove to be a challenge for many kit car owners and builders. Back in the days of leaded ...

Tuning your engine with the aid of an air/fuel meter can really help you dial in your carburetor. But what numbers should you aim for? When people talk about the air/fuel ratio of their engine, do you ...

While people may have biases over which method of administering fuel they think is best, engines don't give a rip. Feed them well, and they will treat you well. This is evidenced by the fact that ...

Think you can't have a small-block that lays down 556 hp, 512 lb-ft of torque, 120-mph trap speeds, and 21 mpg on the highway without dropping three grand on a slick EFI setup? Think again. The secret ...

Turbocharged engines offer performance and efficiency, but come with unique long-term ownership challenges.