It might seem that the intake manifold is one of the simplest components on an engine. After all, the purpose of the intake is to provide a series of passages to join the carburetor with the intake ...

A flagrant case of misaligned ports indicated by the carbon formations. During the course of building, modifying or merely "sharpening up" an overhead valve V8 engine, the question of intake port ...

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 ...

Cylinder head porting is one of those garage mods that lives somewhere between speed-shop legend and flow-bench science. Also referred to as port and polish, the idea is simple: Open up the intake and ...

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 ...