I'll second that emotion. Here is the website:
Route 66 Association of Arizona
Here is the registration form.
http://www.azrt66.com/2014registration.pdf
You do not have to register except to enter the car show and you get a goody bag and T-Shirt.
Here is Ginny's e-mail:
GrammiePhx@gmail.com
Fun drive, fun run, fun meals, fun parking lot.
AZ Bob been going since 2003.