I know my suggestion might be simplistic, but why not get a regular 2 barrel carb for this?
I had a '79 Toyota truck with a 20R 2.2L 4 banger that had a 2 barrel Aisin-Seiki carb with tons of emissions spaghetti on/around it. I got rid of it and put a Toyota specific Weber 32/36 DGEV 2BBL carb on it and it solved all my carb related issues. I did have to regulate the fuel pressure down to 3 psi though.
If a guy was really ambitious, he could maybe fit a RENIX fuel system off a Cherokee
Is the ignition system tied into the carburetor computer somehow?