OK, here's the deal. I'm rebuilding an EA82 engine, SPFI, non-turbo. I live at 7000 feet and the car seems way down on power...it needs to breathe. Cleaning up the ports, slightly reshaping them to cause a spiral flow into the combustion chamber is straight forward, done it many times on M/C engines. However I've never messed with the combustion chamber dome shape before. The valves seem to be very close to the chamber wall, so close in fact that I think it affects the flow. I will shoot some pics and further clarify what I'm talking about.
Thanks for your input.
Klaus