Engineering specs is probably more like brochure info
but are you saying Geo clarified they don't have the other info available for your car as noted in the below text from GM Canada Vintage Vehicle Services website?.
[img]<<GRAEMLIN_URL>>/hmmm.gif[/img]
~ Pete
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<span style="font-style: italic">"...for U.S. built and sold vehicles after 1977 includes (as available) original selling dealer, production date, production location, original exterior colour, interior colour, type of engine and transmission, a listing of all option codes (and verbal description) with which the specific vehicle was manufactured, and detailed Engineering Specifications for the year and model of your vehicle..."</span>
http://www.vintagevehicleservices.com/options.html
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