If Obi-Wan Kenobi was a cylinder head designer, he'd have a Haas five-axis CNC machine in his basement. Although his Jedi starfighter clearly makes use of a propulsion system much more advanced than a ...

Without question, cylinder-head porting is a science. The act of removing metal from the intake and exhaust ports to increase airflow has been used for decades, and in most cases, a skilled head ...

`It's the same old question that is debated daily. Everyone wants power, but few have the resources to buy those romantic CNC-ported heads with unobtainium valves that cost a bazillion bucks. The ...