While some have advantages over others, these 12 engines have displayed optimal traits for successful tuning.

It has been said that the exhaust emissions from a "typical" classic carburetor-equipped street rod can be as much as 100 times that of a new '10 vehicle. That may be possible if the owner of this ...

The Toyota 2JZ engine has become one of the most respected powerplants in automotive history, not just for its tuning potential but for its remarkable ability to survive extreme mileage and abuse.

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 ...

While we like to think of 2002 as being part of a high-tech age, our beloved internal combustion engine hasn't really changed much in the last 50 years. We're still using pushrods and overhead valves, ...

Tuning is a trendy concept among drivers. Everyone likes modifying and improving their cars for better results, such as increased performance. However, for most, tuning costs are an essential ...

Tuning a carburetor to supply an engine with the correct jetting-air/fuel mixture has always been a job that almost impossible for most hot rod owners and tuners. In the past, most performance engine ...