This 1967 Mustang Fastback Hides a Retired 1990s NASCAR Engine — the Owner Says Driving It Is Like ‘Going to Church’ by Jack Harmon A 1967 Mustang Fastback is running a genuine retired 1990s NASCAR engine good for 816 horsepower, and its owner treats every full-throttle pull like a Sunday ritual. See why fans are comparing the sound to a full-tilt Trans-Am car.
