Went with a GM 4L80 with a Mopar bell housing adapted to it. It's a stage V from RPM transmissions. It fits the car very well and has a stand alone tuner for the trans which plugs into the HOLLEY DOMINATOR wiring kit I'm using. I'll try to post pics later. The cars previous owner cut the floor for a modern 5 spd and the 4L80 is much smaller so....need to fab a tunnel now.
You do not need a standalone controller for the 4L80 if you already have the holley dominator EFI. I am not sure if you mean Dominator carb or EFI.
The Dominator EFI has a wiring harness for the 4L80 and can run it directly as well or better than any standalone controller.
So with the single dominator pcm you can run the hellcat and the trans.
