Follow along as Skunk2 owner and founder Dave Hsu shows how to port the GD Fit’s cylinder head. Find out how much material to remove, where to remove it from, and what tools to use. Cylinder head porting has long been used as a method of increasing the volume of air that can be introduced into the cylinders. But the process is time consuming, tedious, and can often lead to undesirable results. Avoid the pitfalls, watch the video, and make more power.