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The power curve tells the story, as we were successful in increasing the power output of the ’68 460 Ford by more than 110 hp. The only trade off associated with the modifications was the torque loss suffered below 3,000 rpm. This was a function of the factory intake manifold, as it was designed to enhance torque production very low in the rev range. Make sure to check hood clearance, as the Weiand dual-plane is more of a high-rise design than the factory manifold and may interfere with factory hoods. The gains were impressive given the mild cam specs and use of mildly ported stock heads. All told, we increased the peak power numbers from 349 hp and 492 lb-ft to 437 hp and 507 lb-ft of torque. Make sure to check back with us, as we intend to step these numbers up considerably in Part 2. View Related Article
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