For 3 months i had a bad miss in my R32 GTR (only happened when engine was warm) I had just replaced the spark plugs,about 1000km (NGK ...6... Iridiums) Then it all started............ CLOSED THE GAP TO .8 ....FITTED NEW SPLITFIRES....CHANGED T.P.S.....CHANGED C.A.S..... CHANGED COIL IGNITER.....CLEANED AND SOLDERED A.F.M,s And then i fitted a set of "NGK BCP6ES COPPERS" "GUESS WHAT, ALL FIXED"