Tumblin Automotive: Screamin' Demon
Bronco Driver Project Screamin Demon on the Dyno. We installed an 07 Mustang 3 Valve 4.6 and a 5R55S transmission in this 1976 Bronco. This was just a baseline pull to see what it would do. The motor is stock except for K&N, our headers and exhaust. The Bronco still has 3.55 gears and is running 37s.