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Our 509ci Pile Driver big-block Chevy was built by Andy Mitchell of Outlaw Racing Engines in Upland, California. Last month, the potent solid-roller combo generated 717 hp (at 6,300 rpm) with 91-octane pump gas on the engine dyno. New heads and intake from Trick Flow Specialties, and a new Ultra Dominator from Holley were a large part of that equation. View Related Article
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