I stand by my statement.
There is no way a 327, 300 hp Corvette of that era would do 160. I was a young man or teenager during that era and pretty much knew what they all would do. It is slightly possible that one of the hot fuel injected models might do it.
Around two years ago, I got free subscriptions to Car & Driver and Road & Track. I have frankly been amazed at the performance they are now getting from even small blocks. Of course just about all of the hot ones are turbocharged or Supercharged. Not the same thing at all.
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I had a new ‘62 corvette that was rated at 340 HP, that would peg its 160 MPH speedometer in just over 1 minute.
The peg was about 10 MPH in arc measure beyond the 160 mark.
The howl of the wind where the top met the windshield was severe. The tachometer was reading about 6800 RPM, and the car had 3.56 rear gears, so the rear axles were turning about 1900 RPM with 750x14 tires.
That makes about 13.000 feet per minute, disregarding tire growth from centrifugal force.
That means that it was going at least 148 MPH (obviously more, but who knows how much)
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