Gen 5 Racing Tech Heads, cam, valvetrain, short block discussion

Plug heat range?

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Old Apr 17, 2011 | 12:06 PM
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Default Plug heat range?

On a cam swap what's everyone doing,dropping on heat rangeWhat are you using?
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Old May 3, 2011 | 05:12 AM
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with cam and heads i would use Autolite 103
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Old May 4, 2011 | 12:20 AM
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This is from the NGK website:
http://www.ngksparkplugs.com/tech_su...d.asp?mode=nml
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Old May 4, 2011 | 07:02 PM
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I'm just doing a cam,do I need to drop one heat range
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