Smog equipment?

[An882500]

I am looking into getting a 1976 chevy 4x4 with a 350 and was wondering what smog equipment is required on that year. The owner says it needs the smopg equipment and i would believe he is talking about the smog pump, thermostatic air cleaner, smog fittings on the exhaust manifolds and maybe a cat converter. Am i missing anything? Any diagrams or an exact listing would be appreciated. Oh and i am in california so if there is any difference in ca trucks let me know. Thanks