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• NMCA
  ...and frame rails. Xtreme Street competes on a true 10.5-inch wide slick and no wheelie bars are permitted. Xtreme Street racing will be conducted at all d ...street equipped, cars and trucks. Mean Street entries are permitted small blocks with a maximum of 385 ci. Mean Street permits a variety of race-proven modi
  20 KB (2,871 words) - 18:24, 9 May 2023
• Engine
  ...er iron or aluminum. An aluminum block was produced in 1961–1963, but most blocks were made of iron. The block is of a deep-skirt design, with the crankshaft ...aust valves were made standard in 1973 to withstand prolonged operation on no-lead fuel.
  88 KB (13,456 words) - 17:56, 9 May 2023