The Twister cylinders have the ports milled on a 5-axis CNC mill via a surfacing technique. This results in the nice, even cutting paths you can see in there.
The "boost ports," for lack of a better term, on the side of the intake, looks like someone was down in there with a die grinder or something.
Lynn is a good worker for sure. I'm sure he'll put a good engine together for you. :thumbsup: