[67ChevyRedneck]

I was finally able to verify 100% that the brakes were factory (apparently it was a really rare option for 65/66, but much more common on 67+? Not sure, still learning) but when I removed the MS I had to unhook all the lines and found all the lines/bends appeared to be original with the original distribution block and proportioning valve. (You can see dist. block and barely make out prop valve below that in pic) The car has the factory disc/drum set up.

When I removed the A/C I found the piece of the firewall that had been punched out at the factory and was stuck to the original firewall padding. I kinda hate that I remove it, but the vintage air set up is so much nicer.