OBJECTIVE: Wet flow, pressure excursions, port volume, runner length, plenum volume—all these figure into an engine's overall efficiency. But there's more… Sometimes theory is neat, but sometimes it ...

When thinking about engine airflow, the common focus has always been the cylinder heads. The experts at Hughes Engines in Washington, IL have been building Mopar engines and developing parts for them ...

It’s the little things that add up and in this case, we’re talking about port matching the intake manifold to a pair of cylinder heads. If you recall, we recently put together a potent, Dart-based, ...

Cylinder-head port design and modification has been a source of speculation for as long as there have been internal combustion engines. Because engines are power-making air pumps, airflow volume and ...