Hi Bill. Let me throw a couple of things your way and then you can see who else steps up.
The article that you may have been referring to was related to the VCCA (Vintage Chevrolet Club of America), not the AACA. And I suspect that that is why you posted here, since this forum is sponsored by the VCCA.
A lot of our club information is available on our "sister" web site
http://vcca.orgThere is membership application information which explains more:
http://vcca.org/application_to_join.htmAnd there is a lot of information about a Drivers Class at:
http://vcca.org/drivers_participation_class.htmThe VCCA is generally supportive of all Chevrolets up to modern, but we only judge stock cars 25 years and older. Cars with minor (or un-noticeable) changes are welcome to join any of our tours if they meet the general criteria (usually year groupings).
The GMC support is still "spinning up" and I'm not aware of any published guidelines yet for them. By checking in here, you'll be one of the first to know.
Now --- it sounds like you've got a great stable!!! And such a sweet mixture. I made the mistake of staying in one year range for too long and now I'm trying to catch up by having a car in each decade!! ha ha...
Welcome to our Chat site.... Please feel free to ask and respond to anything. And, over time, if the club sounds like a good fit, then please give us due consideration.
And -- most of all, JOIN us at Lake Tahoe in 2016 for a week-long celebration!!
----Bill Barker