I'm obiviously losing my mind. I had this very discussion within the last year or two where I told someone else there was no overflow on a 68.
Meanwhile I've saved this giant ass over flow jug for 25 years thinking it was for my GTO .. wonder what it IS for, I'm thinking my long gone 78 Chevy PU. I guess now I can throw away the "original" ribbed overflow hose and proper cap
Cleaning the shop certainly reminds a person how old they are getting ... in more ways than one
PS. Moderator, please delete this thread to avoid embarasment.