Thread: 454 with comp Thumper cam troubles
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Old 07-30-2020, 02:10 PM   #4
68Gold/white
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Join Date: Sep 2011
Location: Ark City, Kansas
Posts: 3,284
Re: 454 with comp Thumper cam troubles
Really need to know the combustion chamber volume, and how far below the deck the pistons sit at top dead center.
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