Options thread question

[LT1 Burb]

Is there a book out there on what all these build codes relate to. I was reading the thread on build sheets and thought I would go look to see if my new parts truck had one and lo and behold, look what I found.It had a cover over the rear seat and most of this was lying in the bottom of the seat.





I just wonder if these build sheets should be saved with all the codes and what they relate to so in 20 years we will have documentation.I was happy to see how loaded this truck was.