My mom had a 73 Chevy Laguna with a 350/auto when I started driving in 76. The first day she let me take the car I dropped her off at work and proceeded to flip the cover.
Picked her up at 4:30 and on the way home juiced it a little and she started screaming at me "what did you do to my car?" She insisted on taking it right to the mechanic. He opened the hood, flipped the cover back, winked at me, and told her nothing was wrong.