CHP, the only oval I know being done there is the 1/4 scale Paved Oval.
I don't know where most of the Qscale guys hang out to read and talk. There is a group of them over at HobbyTalk in So. Cal and Vegas.
http://www.hobbytalk.com/bbs1/forumdisplay.php?f=227
if you are looking for something more 1/10th related visit
www.southwesttour.com for some of that - and/or hotrodhobbies.com
That's about all the smaller scale paved oval stuff.
If you are looking for Dirt Oval - I can't be of much help other than Racer's Haven up in Bakersfield