Sorry to hear Gregg. My misfire problems were eventually traced to a dodgy injector plug that wasn't contacting the pin on the injector properly. Try Erol at EFI Dynamics in Lilydale, he's a tuning wiz and should have some suggestions for you. Perhaps book it in for an hour next week.
Efi Dynamics, Lilydale VIC 3140 - Mechanics - TrueLocal