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After all the mechanical changes were made, Jones went to work tuning our Mach 1 for good power and great driveability. SCT sent us its Livewire handheld flash tuner, along with its Pro Racer Software to write the tune. When all was said and done, our Mach 1 spun the Dynojet rollers to a healthy 309 rwhp and 321 lb-ft of torque. Although these gains aren't huge, they were steady across the entire graph, and the driveability has improved by leaps and bounds.