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Question: Since I added 264 cams, my high stall Auto turns 8000 RPM the whole pass instead of 7500 - causing a "slight" missfire. I always run with new NGK 4554's gapped at .024. The coil packs have 82k miles, and all read .6 ohms cold. All connectors are good.

Would a fresh set of coil packs help out? How much are they each?

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