1971 340 Demon Trade?
It does have a sure grip. I'm not exactly sure of the ratio. I think it's 3.23:1, though. As far as I know, the engine is stock internally. It has the correct casting number heads and intake. Scott Smith (Smith-Harms) looked the car over, and said it was remarkably stock. Obviously, it's missing the stock valve covers, the carb is a later Thermoquad, and the air cleaner top is a chrome one off of a Little Red Express. All of this was done before I got the car.
I acquired this car late this summer in trade for my 67 convertible Dart. Both cars were valued at about $18,000, so it would need to be somewhere in that ballpark.