Congrats! I've got an '83, also with sun-blasted paint (a black-on-black west Texas car that found its way to Madison, WI).

One caveat with the automatic (assuming it's a ZF 4hp22): never rev it in neutral or in park. There's an internal seal that can leak slightly with age, and presented with excessive pressure can do significant damage to the transmission. Does it want to creep in neutral?

Regarding the engine, you'll want to do a valve adjustment, and when you do, check the banjo bolt on the oil sprayer tube for tightness (the bolt will look you right in the eye when you take the valve cover off). If it's loose, give it a dab of Loctite when you tighten it down. A loose banjo bolt can reduce oil delivery to the cam lobes.