milled 317 heads...
05-16-2010, 03:22 PM
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Join Date: Mar 2005
Location: cobourg ON
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milled 317 heads... Hey guys I'm sitting here looking at both my sets of heads and wondering what to do I have a set of 243 heads and a set of 317 heads... looking at the facts knowing the 317 heads flow much better under .550 lift then the 243's I want to know if anyone has flow data of a set of 317's that were milled... what happened to the flow numbers under .550 lift... ????
