Ford Shelby GT500 Modifications - Shelby Bolt-On Bonanza, Part 2 - Tech
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The stock 3.31 cogs were also hindering our efforts, especially at the finish line. The stock gears left us with two options: keep the car in Third in the lights and annihilate the rev limiter, or crack Fourth and putt-putt to the finish line. To counteract this problem, we swapped out the factory gears for a 4.30-ratio ring-and-pinion gear set from Ford Racing Performance Parts. This got the engine over 6,000 rpm at the stripe. View Related Article
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