Came across this link while poking around the Early 911S Registry site:

Information Regarding PORSCHE Vehicles Used for Sports Purposes: 911S 914/6

I assume a lot of people here are familiar with it, but just in case I pass it along.

Skip

Very cool. Thank you, Mark

YUP Describes steve's and my m-471 exactly! Thank you. We both have the document in our files along with the list of 914 m 471 serial numbers.