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Old 04-03-2011, 08:18 PM   #16
the suicidal eggroll
Scooby Guru
Member#: 51961
Join Date: Jan 2004
Chapter/Region: RMIC
Location: Broomfield, CO
2005 STi
2012 WRX


The holes are so the AVCS solenoids can pump oil into the AVCS cam gears to advance the intake cam timing.
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