Hi Andy, Well, you answered my question of "am I reading the rules wrong?" I missed this completely... " ii) Club Ford - must compete in the specification as manufactured and raced. Updates and modifications which were made during the life of the car to improve its competitiveness and safety are permitted.  However, the racer, if challenged, must be able to demonstrate that these changes were in compliance with the SCCA GCR’s in effect during its racing history. " Why would PCF not have the same requirement?