Trying to determine what is correct for the cars built at different plants. Post where your car was built and how the firewall tag was finished--was it bare aluminum, painted silver, painted black or something else.
Mine was built in Flint and was either silver or bare aluminum--I can't remember which and am going by a picture of the car when I got it, I painted it black with the firewall when I restored the car and took it back to bare aluminum now trying to make it more correct.