Originally posted by EMPOWERD
I once knew someone that ran 15psi on an M20 motor. He lowered the compression by reshaping the head chambers. His biggest problem was finding a reliable head gasket. They O-Ringed the block and bought many copper gaskets with different stud kits to find the proper combination. Marco from MAGNUS was tuning the motor... give him a call for more specific questions. Ask him about "Stefano's" car.
It's truly amazing what some people think of...