Welcome to the site and grats on the GTP.

Take a few minutes and puruse the FAQ thread at the top of the thread page and then mosey on over to the robandcatsworld link in my sig. That'll get you started in the right direction.

As for car shows for the GP not many if any at all that are GP specific. Their are a few "gatherings" via this website and clubgp.com. But your best bet is Pontiac specific car shows. Which are still far and few inbetween.