Thread: Befuddled with engine problem
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Old 04-19-2019, 07:21 PM   #16
gmc684x4
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Join Date: Jul 2012
Location: Whitehorse yukon
Posts: 1,218
Re: Befuddled with engine problem
Too big a cam for the heads valve springs will flatten a cam quickly
Those old school 327 300 hp cams are too much for some factory heads with out new valve springs and possible machine work
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