Carter rebuild

I bought 2 nos BBDs from a guy who is on the /6 forum, i wish I'd have bought more than 2.
6537s, a 318 application, both went into /6s and run fantastic.
I only wish i knew my son was gonna sell the truck i put the 1st of those nos bbd's on, I'd have rebuilt one of the old ones on my shelf and stuck onto it to keep that other nos one.
At the time (2 years ago now i think) the guy selling them had like 10 of them...
I paid around $170/ea. NOS, NOT reman .. were still in the original packaging from back in the day. Out of the box ran great with no more than a slight twist of a screwdriver based on what my vacuum gauge told me