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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
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I've been running the same NGK racing plugs as you for about a year with no problems, but looking at them I think I'll go one step colder.

So what you're saying is that by changing your plugs and going to a .024" gap, all your problems went away. You can run .040 (I do), but you need a pretty substantial spark energy to sustain the spark without "blowing it out" (figuratively) on boost. My MSD provides the energy...I don't know if the stock CDI will support the wider gaps. That (the gap, not the heat range) may have been your whole problem.
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Mark H. 1987 930, GP White, Wevo shifter, Borla exhaust, stock everything else. The result of a massive Pelicanite good will fire recovery effort. Truely an open book, ready for the slippery slopes to modification.
Old 01-19-2010, 08:08 AM
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