I don't have any definitive answers to all these questions yet, but I have the best guys I could find, trying to figure it out. The owner of this company, Mike, has taken a keen interest in my racing exploits in the Crossfire (112 engine). http://www.mercedesengines.net/ Thankfully they are very local to me.

It's a hell of alot more interest and information than I ever got from Diamler/Chrysler.