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Old 01-08-2013, 10:20 PM
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RAYFIN RAYFIN is offline
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My brother put Vortec heads on a 400 SBC and he ran 13.0 sec at the drags with a huge camshaft. He went to a mild camshaft and ran about the same time. He said that was because these heads flow REALLY good. You should gain HP either way. He was a GM Mechanic for many years.
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