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The Dyno Sheet-Engine builder Jeremy Anderson was admittedly a little hesitant to hand over the dyno sheet for Roush Yates' new Sprint Car racing engine. "I've spent a lot of time building Cup engines, and it's hard to get used to sharing this information we used to consider top secret," he says. Still, we have the numbers in our grubby little hands, and now we're sharing them with you. The averages were 607 horsepower and 504 lb-ft of torque.