I was about to ask myself, as im fairly new too..
I know there's a car show every Tuesday evening at Shoppers world right beside the beer store, then there's another on ...Thursdays I think at Bovaird drive and McLaughlin rd. That one is in the evening as well. I haven't heard of any specific to G bodies only It's nice just being out with car guys/gals, doesn't matter to me how old or new the car is as long as your into enjoying your ride and respect others and what ever car there into. I also have a 1985 1500 4x4 that I'm working on, just finished installing two new doors, inner fenders and outer fenders. The truck looked mint when I was looking at it, but when I bought it and CAA brought her home and I had a better look, it was a little rustier than I thought. It will look like new in a little while. One step at a time.