Carburetor Tuning Basics - Night School
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This Quadrajet throttle plate shows its unique "spread bore" design. The primary valves are considerably smaller than the secondaries. These carburetors deliver exceptional fuel efficiency when not pressed to use the secondary bores. Despite the Quadrajet's many advantages, G.M. and others opted for Holley square-flange carburetors on their hottest single four-barrel engines. View Related Article
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