I have a Lancair 320 Lycoming 0-320-D3G 160hp Hartzell CS Prop.  I mounted my mixture cable to the engine mount where the nose gear is attached - on the outside of that weldment with the cable attach bracket.   It seems the best angle for the lever. 

 

My mixture control knob when at full rich is 1 inch out from the panel.   I don't think I can adjust the fork that attaches to the lever,  and not sure if I can adjust the cockpit side so ... my cable works just fine but, I'm wondering how others mounted their mixture cable on a carb, not fuel injected Lycoming.

 

Can someone send me a picture?

 

Thanks!!

 

Matt