when looking at this port at fist glance it looks pritty hopeless from a performance standpoint. i though get rid of the casting flash and break the sharp edges on both left and right sides of the port. after a while i came to realize the casting was thick enough to get a nice smooth transition the length of the port on both sides. then i started to adress the sharp step on the floor of the port. again came to realize i could get a nice smooth transition from the floor to the valve guide stem. now time to do the exhaust port. anyone out there hav pictures of a ported hs 50. i would like to see how others have approached this. anthony.
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