It's insane that these racers can run under 10 seconds using factory appearing tires that were either standard or optional for that car. NO SLICKS. And . . . no open headers. In fact no headers at all. Must use standard looking factory exhaust manifolds.
I wonder what the compression ratio of these cars is. I am guessing at least 14:1. The engine visually has to appear stock and you can only run what was available from the factory as far as carburation and air cleaner assembly.
Thanks Lynn for posting this.