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90Gmc

By 90Gmc
August 17, 2005 in Gen III & Gen IV V8 Engines (LS-Based)

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90Gmc

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90Gmc

Posted August 17, 2005

Posted August 17, 2005

I have a 90 350 with a Hypertech Performance Chip that cause me to run high test what would be a good spark plug for this

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