You have finally found one. The gills are in the fender, the shaker is sitting proud of the hood, and the seller has a folder of receipts thick enough to prop open a garage door. He calls it a frame-off restoration and he is not lying. But on a 1971 Plymouth ‘Cuda, the number that decides whether you are buying a six-figure car or a very expensive replica is not horsepower and it is not the color code. It is how much of the original Chrysler steel is still hiding under that paint. Get that answer wrong and you will find out at auction, in front of an audience, years after the check has cleared.
