joey et al.,

I have seen numerous examples of disconnects between Chevy docs and car stampings on legitimate, known cars with good histories and no shenanigans. I am no expert to be sure and do not suggest that I am authenticating this car. I am merely stating my observations. Mistakes did happen on the line when cars were stamped (misread, forgot to advance the ganged stamp, etc.) and when POPs were created. To think this didn't happen is to be fooling yourself. Yes, we would all like to have all of our cars perfectly documented with no glitches, questions, anomolies, etc. and setting such standards is terrific. But, you could be missing out on some terrific rides.
Good luck, Joey!