What are you having problems with? Some specifics would be helpful.
What throttle cable do you have? Does the throttle cable hook to the carb, and you need just a bracket, or you can't even hook to the carb?
Without knowing details, I did a tbi to carb conversion on an '89. I don't recall exact details, but I believe I used a throttle cable from a mid 80's truck that would have originally had a Qjet carb. As for mounting bracket, I had an edelbrock intake, so I used the edelbrock throttle cable mount.
Perhaps your intake manufacturer has such a bracket?