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1975 Rupp Nitro 440 F/A. This sled was powered by a 440 f/a that made about 80 hp resectively.
1976 Rupp Nitro 440 L/C, the fastest production sled of 76.
Rupp Magnum 440 L/C. This is one of the most feared racing sleds of the time.
1977 Rupp Nitro 440 L/C
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