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Discussion Starter · #1 ·
Are Autolite and Motorcraft the only companies making colder plugs for the 3V 4.6 now?
Does anyone that is running the colder HT0 Autolite plugs have any comments? Any problems with these plugs?
 

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Discussion Starter · #2 ·
Anyone??????

You guys on the bottle with 100+ HP should be running the colder plugs.
:?:
 

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I run HT0. No issues.
 
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