Our car has the 9B412667 stamped inverted below both heater holes. We'll be checking for any other stampings once the body is completely stripped.
The VIN stamper not held square to the body might account for the distorted metal around the numbers. Something that meant nothing in 1970 can throw a red flag today. You can't blame people for being careful though when you seen what these cars are going for. Cars at these prices I would only want to buy from the original owner.
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Chevelleless after 46 years......but we did find a low mileage, six speed, silver 2005 Corvette. It will just have to do for now.