Does anyone have a list of what parts were changed over once the car left the Ford build plant? Both at A.O. Smith and at Shelby. And does this vary by year? I am working on a 69 GT500 (Dearborn built) and would like the information as it pertains to my car, but I am sure that it would help others too. EXAMPLE; On my Carb, it is a 9510 AND has the Shelby specific 4280 list. Where and when was this put on the car? And with the carb, if put on at Ford, since there were so few Shelby's built, what would I expect for a build date on the carb?