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LS power vs Pontiac
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12-01-2021, 01:52 AM
pastry_chef
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Join Date: May 2003
Location: Ottawa
Posts: 2,300
Not factory but the AFR LS3 260 cc are stated to have min CSA - 2.875 sq. in.
https://www.airflowresearch.com/260c...cylinder-head/
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