360 - Rebuild - Information & Opinions Needed

DARTH V8R said

KB 107's will give you around 10:1 (.011 in the hole), Speed-Pro H116CP30 around 9.8:1 (.026 in the hole).

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Are you sure about those numbers since KB says there [email protected] is approx. 9.8-1 with the factory head. (Open chamber)