I am surprised you did not know about Team Camaro, with you owning a 69 for so long (I have had 69s since 1979
).
The 3 sites I use regularly (besides this one) are:
Team Camaro (I am a Moderator there) :
https://www.camaros.net/ https://www.camaros.net/forums/
Camaro Research Group (CRG)
http://www.camaros.org/index.shtml http://www.camaros.org/forum/
Supercar Registry:
https://www.yenko.net/ https://www.yenko.net/forum/
Can't wait until normality is back in 2021 and I can get to some car cruises!