You may want to look at this.
Pro-M EFI Universal Hotrod Engine Management System - Pro-M EFI Engine Management Systems - Pro-M EFI Engine Management Systems
I would have went this route, but I have EEC4 and this replaces EEC5. I would have had to change out my wire harness and a couple sensors, which put this option about 3X the price of the Quarterhorse chip.