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Old Feb 9, 2004 | 04:20 PM
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WNDSOR
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i'm running autolite 25s in my 351w, can a colder plug have much effect on motor, 25 is pretty much middle of the road</P>
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Old Feb 10, 2004 | 04:02 AM
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Originally Posted by WNDSOR


i'm running autolite 25s in my 351w, can a colder plug have much effect on motor, 25 is pretty much middle of the road</P>
25s are 2 steps colder..can lead to fouling or build up on plugs..unless you are running nos.then you need them,,,
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Old Feb 10, 2004 | 10:01 AM
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really, i thought they were a middle plug, well i'm not running nos, and they seem to do well. no fouling or build, yet, go with 24s? cast heads
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Old Feb 10, 2004 | 08:26 PM
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26's
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Old Feb 11, 2004 | 09:50 AM
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cool thanks, i was always told that autolite for some reason were opposite on the heat ranges, meaning going down a number is hotter and up is a colder plug unlike every other plug. guess i heard wrong huh</P>
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Old Feb 12, 2004 | 03:29 AM
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thats for jap, plugs...
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