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In the Camaro (1983 - 86) the H.O. 305 was rated at 190 hp In the Monte Carlo SS (1983 - 1988) the H.O. 305 was rated at 180 hp Differences between the high outout model and the regular 305 included: 9.5:1 compression, cylinder heads from the Crossfire Injection motor, an aluminum dual-plane intake manifold and a cam from the L-82 Corvette.

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16y ago

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