Originally Posted by bunot
it might possibly be running too rich. my AFRs are 9.99:1 right now @ around 5500-6000rpms. i hope this is the culprit, but then i've run 9.8:1 before in OLF while tuning the car and my plugs never misfired. i'll try to get it down to 10.XX:1 and see where that takes me. (fingers crossed)
Why on earth are you running so rich?