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Old 04-17-2012, 08:43 PM   #1
K5 Addiction
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Join Date: Jul 2011
Location: Tennessee
Posts: 404
Anyone know the stock compression of 1966 250 I6

I know I've got a problem in at least 1 cylinder as there's about 21 PSI difference between cylinder 5 (the highest at 128 PSI) & number 2 (107 PSI) but don't have a base line to know how bad off my motor is overall. Any info would be greatly appreciated.
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