That's a really nice looking sled. A real keeper.

Not to be an alarmist or anything, but the front harmonic pulley on these cars have come loose before. Be careful around belts on a running engine. Years ago a friend of mine had a fan blade come loose and go through the hood of his '78 Chevy Blazer.

The transmissions on these cars have shifted funny since they were new. I am sure someone on this forum knows how to set the bowden cable correctly.

Good luck.