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Registered
Join Date: Jul 2008
Location: Central Washington State
Posts: 4,435
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That dancing timing at idle is trying to say something, but I'm starting to run out of ideas. Hang tight, all the 930 gurus out there are just waiting to swoop in with the fix (meanwhile, having fun watching us stumble around a solution).
I run my NKG plugs, fired by my MSD6AL, at .042 or something close to that anyway. The MSD has plenty of fire to support that gap and supposedly would only be a concern under high boost if there wasn't enough spark energy to keep the spark from "blowing out".
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, B&B intercooler, stock 3LDZ.
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