i just want everyone to know that i really appreciate you taking the time to respond to this thread. apon further reading into my honda engine builders handbook, it seems pinging is caused by pre-ignition/detonation, which is a result of lean a/f ratios and too far advanced timing for the load. a guy, S/N: YBlegal, said he might come out this week too and see whats up. thanks for the input again!! -nathan