The Classic Mustang Fastback The days of quirky carburetors and wondering if your 50 year old classic car is going to start when you turn the key are over. The Velocity built Ford Mustang Fastback is powered by a modern day 460hp 5.0L Coyote, and can be paired with an efficient 10R80 10 speed automatic, or a 6 speed manual transmission. Contact us to ask about build slots to get a Fastback Mustang built for yourself before Spring. #classiccar #musclecar #vintagemustang #classicmustang #mustangfastback #americanmuscle #restomod #builtbyvelocity