Thread: Heads- which is good?
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06-01-2007 05:49 PM #4
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- Jan 2007
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- Car Year, Make, Model: 1969 El Camino SS396 350HP
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I'd use the smaller CC chambers. 9-1 compression is a very streetable ratio especially when using a bit bigger cam. Having 8.7 compression is fine but it is limiting your cam options later. A 220 duration cam will run better with 9-1 compression.
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A belated Happy 78th Birthday Roger Spears
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