A drag-spec car for most of its active life, this 1970 Plymouth Road Runner is now a Concours-ready classic. It packs the rare Six-Barrel V8.

This engine swap is heating up, and we're almost ready to drop the new 650-horsepower crate engine in place. Still, it's sad ...

with all the top-end parts from the original powerplant. Even the vinyl top and billboard stripes were the real deal, put on the car by the workers on the Chrysler assembly line. Photo ...