Ford Mustang GT Roush vs Mustang GT, how much faster is the Roush Mustang? Drag and Roll Race. Grudge Races admin — April 8, 2022 · Comments off Ford Mustang GT Roush vs Mustang GT, how much faster is the Roush Mustang? Drag and Roll Race. source grudge race grudge racing no prep kings grudge Npk grudge street outlaws grudge