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Old 10-28-2010, 02:15 PM   #3
Scooby Specialist
Member#: 153861
Join Date: Jul 2007
Chapter/Region: MAIC
Location: Frostburg Maryland
2008 WRX hatch
WR Blue


You would never get away running that much boost on stock heads with stock cams. You would only be able to run 10-12 psi with upgraded pistons. In order for you your heads to run more boost you would need to upgrade your cams and valvetrain.
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