I have 1961 Squire with a Coyote enigne and a 6r80e tranny. At the time I bought the engine and tranny out of a 2014 Mustang, there was no Ford performance harness or CPU, so a company called Buaman offered a harness and CPU. Anyone have any experience with this CPU? I have tried to load a multitude of shift patterns but nothing works. It either shifts like it had a 3500 stall converter and jars your neck or jus slips till it shifts and jars your neck. Anyone know of a good tranny company that can program it?