If 500 horsepower isn’t enough power from your Dark Horse Mustang, Hennessey will gladly bump that figure up to 850 hp with the Super Venom Mustang. Capable of turning a 10.9 second quarter mile run, the Hennessey Super Venom Mustang Dark Horse (gee that was a mouthful), boasts big tire shredding power and torque. Not only is power up by 60 percent over the factory unit but peak torque has also risen by 55 percent, a very nice increase indeed. It’s all thanks to a high-performance supercharger, high-flow air induction system, upgraded fuel injectors and pump, and a proprietary Hennessey engine management system.