Hey Victor,
Welcome to the forum. Check for your father's car on Chuck Melton's DeTomaso Registry for more info. You may need to add it or another car for access, but you can always email Chuck directly if necessary. The site is horribly organized and almost unnavigable, but it does have a ton of info if you look hard enough.
http://www.provamo.com/Members.../ProvaMoRegistry.asp
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