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Part of what makes EngineQuest’s heads such great performers are their fast-burn, Vortec-style 65cc combustion chambers. Not only does this allow achieving high static compression ratios without the need for domed pistons, but it also improves combustion efficiency. On Westech’s flow bench, the heads moved 233 cfm through the intake ports at .600-inch lift, and 193 cfm through the exhaust ports. View Related Article
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