I have a Rochester quadrajet that is on my '79 chevy 350 and I looked up the numbers and it said it was a california standards carb. What does that Mean? I want to rebuild it and was wondering if it's worth it or not. Also what is the best rebuild kit to get? I saw somethin on a tv show about puting bushings for the throttle plate so the butterfly valves don't have too much play. Is that something that comes with most kits? The numbers are 17059506 and here's a picture. Any info would be appreciated. Thanks