I guess the only advice is...good luck. There's ways around it but even if you "know a guy" who works at a smog shop or know of any tricks like that, it is REALLY going to get cracked down on eventually here.
I'm not sure if it is effective yet, but there are supposed to be cameras mounted in smog shops for video verification of cars being tested.
Even IF the Weber makes it run better, they don't really give a $hit if it passes the actual EMISSIONS test---they look for the "proper equipment" that has been "certified" by the state (read: did the carb company put enough money in the state coffers for their product to be approved for street use). Like I said, even if you can get it to pass now, it will be ever-more difficult to pass each year after...