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Although Mopar was the slowest of the Big Three to scale back, not all its V-8s escaped detuning. The Road Runner's standard 383-cid four barrel, for instance, lost 35 bhp. 71 GTX engines, however, held out relatively unscathed. Compression ratios were shaved slightly, but the standard 440 four-barrel and the optional triple-two-barrel 440+6 lost only five horsepower, to 370 and 385, respectively. The extra-cost and seldom-ordered 426 Hemi held fast at 425 horsepower. Four-speeds and TorqueFlites, with axle ratios up to 4.10:1, were still available, as was the Air Grabber hood.
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