I am also looking at moving to California, but I have a 76 with an LT1 and sidepipes(no cats). What kind of problems am I going to run into?
For years, we had the 25 year law. Cars rolled off the smog check status after 25 years. In 2000, they froze it at 1975, because that is the first year all cars came with cat converters, and 76 was 1/2 ton trucks.
Technically, your car needs to have the engine it came with, with the stock smog equipment it had. A physical inspection will show these up.
The good news is, the techs here don't know what they are looking at with a car that old.
IF you install cats, and a Y-pipe type exhaust, and pass the sniffer test, you would probably be okay. Timing per your hood sticker is also checked, as is all smog stuff shown on that emissions sticker.