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Header Theory Dyno Test

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Published on Jun 11, 2013

Popular Hot Rodding tests a variety of header sizes and types from Hooker on a 427ci big-block Chevy to show power trends and performance advantages. Tests include 1 ¾-inch long tube, 1 7/8-inch long tube, 2-inch long tube, 2 1/8-inch long tube, 1 7/8-inch shorty, ceramic-coated versus painted, collector extensions versus no collector extension.

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