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Old 06-04-2024, 06:28 PM
JSuchma JSuchma is offline
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Join Date: Oct 2020
Location: Houston, TX 77089
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Those are not true 70 RAIII manifolds. The 1970s had only 3 head flange bolt holes per side. That was the only year for this arrangement; all previous ones had 5 holes per side. Never heard of the 4 hole flanges.

 


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