guys... anyone have any good success gapping HKS/Denso iridiums? ....at the track i get my car to tempature with 9's and then put in the 11's after it warmed up...i cant seem to get rid of a misfire down low with the 11's.... it seems like you truely need to get these plugs over 3000 rpms to fire consistently!

BTW: i run igniton amps and coils on all 4 channels