Thanks for the information. The car has a 350HP 396, Turbo 400 transmission, a 12 bolt rear end A/C, P/S P/B. Blue with black interior. It is an SS. I did convert the front end to an RS. I will send pictures.You probably can’t, unless it was originally sold in Canada. Chevrolet kept no records on individual cars, unlike Pontiac which has the Pontiac Historical Services. If it was sold in Canada, the government kept detailed import records on each car. It is GM Vintage Vehicle Services.
Good luck. Tell us more about the car. We love pictures!