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mark houghton mark houghton is offline
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Join Date: Jul 2008
Location: Central Washington State
Posts: 3,775
Originally Posted by wjfk32 View Post
I 2nd that- NGK R5671A-7.. Gap-.040 with my MSD-6AL & MSD COIL. Best plug I used so far. IMOP.
+1. I went with those and gapped at .40 last plug change and am happy with it.
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 07-29-2009, 04:45 AM
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