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Be certain that the intake set you will be using has an insert to cover that small area that is impervious to heat. Some gaskets are intended for heads without the opening and consequently are made of regular material instead of a gasket with and insert for the cutout. Felpro 1250 High performance gasket works well for 289 heads. Port sizes etc.
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Rick
As you slide down the Banister of Life, may the splinters never be pointing the wrong way 
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