Which B/RB carb bracket to use

Big block in a A body that had a /6.
Easy enough and the been there done that guys would know what throttle bracket to use.

I myself had a 400 B in a ‘71 /6 Duster and I used a Lokar cable set up for the throttle and trans kick down. If there is a factory bracket to use with a /6 cable, I am unaware of it.