Inlet porting for reed valve

Shortly going to enlarge the inlet port on some smallframe casings to take a reed manifold. Now i know you completely do away with the compression plate but i don;t visualise exactly howe much (how big ) i remove metal.

Any links to a picture showing a casing already done ?

follow the above link and go to smallframe tuning - there are some great pics of the inlet, transfers and recommended alloy welding areas



shortly I have to do the same modification. I will ask a friend of mine for the dig camera so I will take some pictures. But I can’t promise anything…