Those heads I have found on early '73 cars and with the pistons used and deck at .022, they are around 110 CC and come in around 8.2:1 as unruhjonny has said .
You will not see these typically after the ( EPA mandated) engine change over in March/April and the new Intake, EGR etc.
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"The Future Belongs to those who are STILL Willing to get their Hands Dirty" .. my Grandfather
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