There are quite a few of TR/GN guys here in AZ and in the Metro Phoenix area.
There are 2 drag strips, methanol and race gas are readily available and it's gonna be hot, really friggin' hot, in August when you get here.
Winters are great though......
Nick Micale of AZGN usually does a big Buick race event sometime between Halloween and Thanksgiving each year and there are some BPO events as well.
There's also "run what you brung" races almost every weekend of the year here.