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Old 06-05-2009, 02:35 AM   #3
Kevin
3" Exhaust
 
Join Date: Apr 2009
Location: Ontario, Canada
Posts: 194
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from what i've read.. you probably want to keep the compression ratio as close to stock as possible. so like mirage said. you would want to figure out how much your machine shop is going to take off the head before u buy the hg
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