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Which Spark Plugs for High boost motor

Old Nov 26, 2007 | 07:19 PM
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rotalife's Avatar
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wanting to know whats the best ngk plugs to use for a motor thats boosting 25psi. any help would be greatly appreciated.
Old Nov 28, 2007 | 12:59 PM
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imo you want the cold race plugs.
Old Nov 28, 2007 | 06:40 PM
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Originally Posted by j9fd3s' post='888768' date='Nov 28 2007, 10:59 AM
imo you want the cold race plugs.


im looking for like a part number or the number on the spark plugs. i was told 11.5 is common in puerto rico but its different here in nz the place im buying them from want more information.
Old Nov 28, 2007 | 10:35 PM
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NGK R6725-11.5
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