Porting cylinder heads is a blend of art and science, allowing more fuel and air into an engine's combustion chambers, and more exhaust gasses to exit, for a net increase of power and efficiency. And ...

Since the days of relieving flathead Fords, we've known about the advantage of porting. Grind those critical passages with the right touch, and airflow through the engine improves-and with more air ...

This episode of Engine Masters presented by AMSOIL reinforces the fact that Steve Dulcich is not just the guy in the back of the dyno room—he’s a legit engine master. And you won’t question that after ...

Horse Sense: For about a year after Trick Flow stopped offering the original Street Heat cylinder heads, they were still available from Wil-Burt, the company that cast the heads for Trick Flow before ...

ABSTRACT In order to achieve optimum performance from an engine a homogeneous air fuel mixture must enter the combustion chamber. There are a number of factors that affect the mixture; this study ...

Last week, we introduced you to Robert “Jocko” Johnson, the desert-dwelling sculptor/cylinder head-porting master/would-be land speed record-breaker profiled in the May 5, 1997 issue of Autoweek. This ...