Rare 428 Cobra Jet Mustang vs Impala SS 409?

In this case, the pony car is a rare 1969 428 Cobra Jet Mustang GT Coupe with 335 horsepower, one of 243 models built in1969. The competition? A rare 1963 Impala SS powered by a dual quad 409 with 425 horsepower.

We definitely don’t want to spoil the experience by telling you how it all plays out in the video, captured by RoadTest TV.  But we’re betting the outcome might surprise you.