33. With a quick check for leaks completed, Simon fired the Chevy to life and made a few dyno pulls. The end result showed 415 rwhp and 443 lb-ft of stump-pulling torque. That's an increase of 107 rwhp and 105 lb-ft of troque! Perhaps the best part, the new supercharged engine was now making more than 350 lb-ft of rear-wheel torque from only 2800 rpm all the way to red line.