Hi Danny and great find! What a girl friend! Just got back from vacation this morning and thanks for the email and kudos on my build thread, and yes, we now have Camaro relatives, huh! Great pictures and documentation so thank you! On the GT stamp, know I have not observed enough to have any idea if having the T only was common as many things could have been possible but we now know of one, yours. Hard to find examples like this with so much of the original content still there. I would tend to believe the PCV has been changed due to being a later design but maybe an expert will chime in. Again, great 68Z and congratulations.