455 Buildup
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With its 2x32-inch primaries and 31/2x10-inch collectors, Hooker Headers' PN 3201-1 fits '68-'72 A-bodies and is a good match for big-block Olds exhaust ports. Westech hooked the headers up to 31/2-inch in-and-out DynoMax Magnum mufflers. View Related Article
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