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Brian - you should close them up to .044-.042 - then get some better plugs, like NGK's. I'm running Motorcraft @ .042 with 16-17 pounds of boost. When the boost peaks, I seem to experience some blow out from the plugs...it runs a lot better with less boost, so I was gonna close them up, but I'm not sure how much.
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-Don
86GT (sleeping in the garage for now)
87 T-bird Turbo Coupe (daily driver)
87 Ranger ($100 work truck)
Meat is murder!... Tasty, tasty murder.
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