I put a 350TBI into my 72 LandCruiser with a hotter cam, the ECU gets a reference signal from the distro, but that's about it. I had to reprogram the ECU to drop the VSS sensor, and I don't remember anything in the code about advance. TBI is very forgiving, and very simple, you can do most anything with it.
For reference, this is how well my 350TBI modified ran the first time we drove it: