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Old 06-27-2010, 02:40 AM   #4
907mge
20psi boost
 
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Join Date: Dec 2009
Location: Harrisburg
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You don't need to replace the 4 plugs. On mine I did away with the spark plug valley cover and just reinstalled the plugs with RTV and it has worked very well for me. I also cleaned up the treads well. I left the cover out so I could keep track of what is in the valleys since the coolant plugs can leak also.
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