Thread: New Eng shroud
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Old 11-24-2013, 07:05 PM   #10
gutterball

 
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Drives: 2014 1LS M6 Supercharged
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Quote:
Originally Posted by HP Turbine View Post
Getting better. I ran an octane booster and the knock and timing retard went away. I have new plugs that I'll be changing soon.
Dollar Tree has Octane Boosters for $1. Just got the iridium plugs myself, will be installing tomorrow
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