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Discussion Starter · #1 ·
just got some iridum ngk's for the svtf and gaped a smugg over .045 and was wondering if anyone else out there is running good in the .060's with the screaming coil and live wires! post your successful plug gaps and did it feel better in the butt dyno?
 

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Iridium plugs are not supposed to gaped, atleast thats what ive been told.
 

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Motorcraft coper plugs or platinums gapped at .060 is the best, don't need the screaming coil and wires, just the Taylor wires with a stock coil is more than enough.
I have taylor wires with coper plugs gapped at .060 and all I felt is better idle, other than that I didn't feel anything
 

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Copper plugs gapped to 0.060" with the MSD coil and wires here..no significant improvement over what it was before...maybe a small increase in mileage but that's about it.
 

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You do realize theres a sticky about plugs, plug wires and ignition that covers this..............
 
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