I was at the 1977 Riverside Nats, just flying combat. I think I have some combat photos, but not stunt. It was hot windy, dry, and dusty. Not a great Nats, but a Nats.
College dorm housing was both terrible and over priced. I was still on active duty and able to switch to USAF quarters. Others bailed out dorms in favor local motels, which became the new normal.
Greg Hill won FAI Combat in a big field of entries.
They test-dropped the Space Shuttle (from its 747) for the first time during this Nats. It was a big deal.