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  • Offenhauser 6120 351C 4 V Port O Sonic


    Ford 351 Cleveland 4V, Std. 4 bbl Carb

    Here’s a manifold designed by Offy engineers for competition only. Specially designed plenums and runners match the volume of a specific engine for maximum power. Eliminates “lean/rich” condition from cylinder to cylinder commonly found with other aftermarket manifolds.