Hey Festus,
what seems to be your issue with the "oddball carb'?
I seem to have turned into the local repository for 1969 CT 90's, I started with 1 now have 3, one early and two late models, the carbs are really easy to dial in, I have done all of mine as well as a couple others for guys, are you have a tuning issue or damaged component issue.

You can change the intake and carb, just pick up a matching set, make sure you get ALL of the parts, throttle cable, slide, cap etc, but realize you will need to change out the air box and its components, and the down tube cover

Oh, and if you decide to off the carb, let me knowSmile

Steve