You're still too lean. That "rich" smell is hydrocarbons from incomplete combustion. An authentic rich mixture is carbon monoxide, which doesn't have that eye-watering stink. If you are super rich, like the choke is stuck full on, then you can get that stinky exhaust. What's happening is that the mixture is too lean to burn completely and it gets exhausted. Many times you can also address a lean mixture by advancing the timing to allow more time for the mixture to burn. But it's better to just richen it up.