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With the Indy single-plane and Demon carb, our 440 definitely gained a powerful look. Making the change to the single-plane intake required a distinctly different jetting combination than the two-plane intake to dial-in the air/fuel ratio. With the new induction combination tuned and jetted, dyno operator Steve Brule pulled the handle, and we awaited the results. Power surged to a new best of 655 hp at 6,300 rpm, and, surprisingly, peak torque was also up significantly, recording a peak of 578 lb-ft. With power like that, the Mauler earned its name.