I am similar in weight to you and this is my setup on my 153 Sno Pro
Limiters all the way out
3 or 4 threads showing below the nut on the front track shock
135 psi in the rear track shock
75 psi in the front shocks
Seems to work very well for me. Gets up on the snow better, and good in the bumps. Definitely transfers plenty for me. Seems to be a nice improvement of over the stock settings of 8 threads showing, limiiter in middle and 145 psi.
I personally don't like more then 80 psi in the front shocks. Any more then that and when your sidehilling and hit ruts and trenches the sled bucks. 75 psi and it feels like you just glide over everything.
IMO, running the front shocks soft is a key factor in how the sled feels on its side.