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What Spark Plugs For 428 What Spark Plugs For 428
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Old 11-09-2004, 05:37 AM
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Default What Spark Plugs For 428
WHAT SPARK PLUGS ARE YOU RUNNING IN A 428?
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Old 11-09-2004, 07:40 AM
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It will vary with the head - my old high riser head took an Autolite 45, my new Edelbrock Performer RPM's take an Autolite 3924.
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Old 11-09-2004, 08:14 AM
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I run one of three plugs in my Edelbrock alum heads and are very similar with a slight advantage maybe going to the Accel.

Motorcraft #AWSF 32
Accel #416
Autolite #3924

I gap mine at about about .037

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Old 11-09-2004, 12:21 PM
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I still have the old high riser heads and I use the Autolite 45, gapped at .045.

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