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Old 03-28-2009, 09:15 PM
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houston
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Originally Posted by gtsum
stock shimming for 21-4 running 30%?? How about plugs? Nova's? (so many to choose from, I get all messed up figuring them out)
the '09 p4's come shimmed at .80mm now perfect plugs, i usually use odonnell anymore odo77T/97T w/ turbo or odo77/99 w/ standard . i am going to use nova AGAIN this summer to see if everything got figured out ultra c5 standard the stock plug is good
Last edited by houston; 05-20-2009 at 12:08 PM.
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