That's easy. The production plant will be listed on your VIN and COWL tag. Your VIN should start 3J67K2 The next letter will tell you the plant.
M - Lansing
R - Arlington
Z - Freemont
G - Framingham

 

I found out that my car was built in Lansing. So we will share the same stamps.

 

Hey Alan what about the cars built in Canada what letter or number is in the VIN?

 

You would have to go back to 69 if you were looking for Made in Canada Cutlass. All the Canadian 70-72 Cutlass / 442 were imported to the best of my knowledge. The VIN would have a number 1 instead of a letter. The cowl tag would have OS for Oshawa.