Look at your cowl tag. It is located under the hood on the drivers side near the firewall. On the left side of the tag you will see a code with 2 numbers and a letter. It will look like 08C (08 is the month C is the third week). 11B (second week of November). This will tell you when the car was made and let you know high or low for your production. This number will align with a month and day build date on the top left of the build sheet if you have on. My last 70 Monte was an early build 08D. On the top left of the build sheet it showed 8-26.