I smogged my 82 245 ( which has an 83 B-23F engine) when I brought it in from Oklahoma. In terms of qualifying equipment, the catalytic converter is the most important part, "No Cat, no pass". You need a good baseline tuneup, a new air filter, a new or clean flame trap, and 9 times out of ten the car will pass. BTW, in California a car is a gross poluter based upon how much your car exceeds the standards, not on how many times you test. In certain smog impacted counties you will be required a have a chassis dyno test at a "test only facility" You can get a list of these facilities by zip code off the net by logging onto the CA.GOV website and then to the Consumer affairs section and Bureau of Auto Repair for the listings.

In my experience a Catalytic Converter is good for about 5 years before needing replacement. If it doesn't look reasonably new its unlikely you'll pass. Most places will do a retest for a reduced or no extra charge. Good luck.

Dean