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Old 08-31-2009, 12:24 AM   #8 (permalink)
Join Date: Feb 2008
Location: maine
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oldscoob - '87 subaru wagon gl/dr
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Originally Posted by JasonG View Post
Carbon build-up on the crown of the pistons will raise your compression as well.
very true. the high number is actually headed towards evil. the purpose of the test is to be within specs. Remove EGR anytime...
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