Mike - Not sure what you are looking for here. The POP tells almost everything in terms of original equipment. If the codes match the car then you're good. This site seems to have lost the majority of it's members. They are mostly on the facebook ss427 site and the full size research site. I refuse to become a facebook statistic (zombie).
Here is something you can use to decode the POP.
https://impalas.org/protectoplate/