I'm new to this site but I am an old tuner. Been doing it since '99. I did a lot of early stuff with the $0D mask especially MPFI mode. Lately I have been pretty much exclusively doing OBDII but I am starting a new project. I have a '70 Chevelle with a GM 350HO that I am converting to RamJet EFI and I will be using a 16197427 TBI PCM in MPFI mode using my own modified version of the $0D. It will have dual e-fan/dual speed control like the late model trucks, N2O solenoid control, wide-band datalogging and I am working on WBO2 controlled closed loop but nowhere near done. The engine will be backed by a stage 2 4L60E from PATC and a 10 bolt 3.73 posi. I hope to be done by the end of summer. We'll see.