Best plug for 15 lbs of boost on a LT1

04-18-2009, 09:35 AM

Staging Lane

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Best plug for 15 lbs of boost on a LT1

As the title says: which one?

04-18-2009, 10:19 AM

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NGK TR6 is what i run. TR7s work good in really hot climates as well.

04-18-2009, 10:25 AM

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I have AFR heads so I have to run a gasketed plug. I run either the 3922 autolite or the F1RLS ac delco.