1) What is head porting and polishing and how does it work?Porting involves shaping and/or polishing the intake port openings, the inside of the ports, the exhaust ports, the bowl area below the valve ...

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 ...

So you've port-matched everything on your Pontiac motor and it's still not running up to potential. Your intake manifold could be installed incorrectly. Because ...

Much has been written about port-matching stock cylinder head intake ports to the intake manifold, but for those on a budget, a simple port-match delivers little, if any, improvement. Particularly ...