I'm not aware of any MPFI applications using the '7427 from the factory. I know it was a surprise when people discovered the ability and the flag in the code years ago. Maybe you're thinking CPI? I thought those used a different PCM though.

Once you program an EPROM with a manual bin, what the original EPROM (on the MEMCAL) was programmed for no longer matters. There are no trans controls in the LHM RFD side of the MEMCAL.