Thanks, that helps a lot. However, I still don't find CCT (last 3 digits), but at least it fits the format and at the top of the page it says it is not a complete listing. Seems pretty clearly a 250, and casting no's would indicate a late 76 model vehicle. Any further information would purely academic at this point, so unless someone likes playing detective, I've got what I need.
Thanks
ETA - Somehow the post above wasn't there when I posted. - Thanks Fried - mystery solved.
Last edited by The Green Farmer; 09/01/2010 3:01 PM. Reason: weird timing