My 300L has a PCV, and was sold new in New York State.All 300Ls would have the same 413HP, with 360 hp rating.
I've not paid attention to those cars/codes because they should all be the same. Until now, anyway.
Here's a posting of a car and FT, I think this might be the former Don Rook car that someone on here sold awhile back (@hergfest, maybe?).
Factory 4-Speed-C-Body-Photo-Thread
Let's see what some other 300L owners have to say:
@Big_John, @haywire 440, @LD4RAD @capyjack
What codes are on your fendertag, under the AB? And does your engine have PCV (and do you know if it is original to have PCV?)
My '65 Barracuda, built and sold new in California, has the PVC and the hose from the valve cover breather to the air cleaner.
The previous owner did a page on the data plate for my 300L 1965 Chrysler Data Tag with a 99 under the AB.