Firing up the SUPERCHARGED TWIN

Firing up the SUPERCHARGED TWIN-TURBO 7-liter Duramax engine for the first time! How much horsepower will it produce? How much boost will the 5-liter Whipple supercharger and twin Precision turbos produce? How well will the two intercoolers increase manifold air density? Gale Banks aims to find out running the engine to see what he and the team have to work with.