Disappointed with my engine

In 73 I had a 69 350/350 hp 4 speed Vette l raced I don’t remember what on the interstate and hit 150 mph. I passed a car on the emergency lane at 120. Yeah I should be dead.
if we blew a non speed ratedtire we would both be dead . yhe tires back then was not speed rated we didnt kow or csre we just mashed the gas & held on