Having had my .21 come set from 2 turns out from factory I had to get the settings off of another engine in order to get it running, as quite simply it was set way too lean on the top and too rich on the bottom.

Consequently the settings I used where:
4 Turns - HSN
6 1/2 - LSN (Carb Barrel Open)

They are on the rich side, especially the bottom but better that than too lean like mine was...