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 ...

Of all the parts that have come and gone for the small-block Mopar, none are as venerated as the fabled W-2. Due to the work of airflow master Bob Mullen, the W-2 was truly revolutionary when ...

In the Feb. '11 issue ofHPP, we presented the new Edelbrock Performer D-Port head in the article D-Port Development. At the time, the head wasn't production ready, so our story was written based on ...

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 ...

We've gone a little rotary engine crazy around here, but the more of these spinning triangles we throw at you, the more positive feedback we seem to get. In fact, I get more e-mails and social media ...

Automakers strive to produce the highest-performing engines that meet their budget goals. That often means the performance gains from porting and polishing intake (and exhaust) ports aren't ...

Modifying your intake can fundamentally change how your engine breathes. Discover exactly how porting affects performance and if it's worth the effort.