Help with build sheet

So I'm trying to learn as much as I can about my new 1968 Barracuda. I have the build sheet (see attachment) and am trying to decode it. I've searched the archives but everything I find seems to deal with the fender tag, and then most of the information is for 1969 or later. I apologize for my computer skills, but am I missing something? Is there information on our forum with the info I'm searching for? If not any suggestions on how to decipher these numbers?

Thanks in advance.