My 216 used to stink enough that my wife could smell it on me (clothes, hair, facial hair) if had driven the truck earlier in the day. When I swapped from the Rochester B to a Carter YF and got the YF set up with the proper needle & seat valve, it stopped smelling bad and I don't smell like fuel-rich exhaust like I used to.
EBS -- while it may be too late for you, it might not be too late for others who may want to address the reasons (fixable!) why their B-series Rochester carb runs rich. A new Tech Tip is about to be unveiled in the engine forum, authored by our own JonG! Stay tuned!
