During the course of building, modifying or merely "sharpening up" an overhead valve V8 engine, the question of intake port alignment usually arises. With in-line and flathead V-type engines the ...

Modifying your intake can fundamentally change how your engine breathes. Discover exactly how porting affects performance and ...

When most of us talk about Mopars, our discussions often revolve around the "good old days" when cars were simple and we could work on them ourselves. Carb tuning involved a screwdriver, and ignition ...

Half of the U.S. new-car and truck fleet now is equipped with gasoline direct injection (also known as GDI)—which means the fuel is sprayed straight into the combustion chamber. This begs the question ...

On average, a properly set-up engine can make about 2 horsepower for every 1 cfm of dry intake port airflow. However, that does not automatically translate to "bolt on better-flowing heads and make ...

The question of the day seems to involve the difference between the original cathedral-port and modern rectangular-port LS heads. More specifically, which one is better? Were we to compare two sets of ...

Porting an intake manifold essentially helps increase airflow into the engine. Improved airflow equates to more horsepower and helps the engine feel more responsive at the throttle. A standard intake ...