Kurt:
WYIT - think of installing SRP "R control arm pivot box upgrade kit" [#562010 - 911 arms, #562020 - 930 arms] for dialing in more R camber. Have installed on both our 3.0L and 3.4L cars.
Aditionally, welded tubing [or 1" square] to brace torsion tube [behind where brackets are for trailing arm attachment] to transmission tunnel [easy access if you are removing R seats for access panel] b/c this area will crack and break away under high stress [track car, sticky tires, slicks...?]. Has become SOP at most race shops building race 911s putting out ~300hp+. Stress issues become worse with 930 arms and 14" slicks
On one car we welded in a plate in the tunnel for the 1" square to attach to [rather than sheet metal] and then ran the square to the torsion tube [attaching R behind where the SRP R control arm pivot box(s) are installed].
Here is a
link to the pivot box install instructions from SRP. In figure B in the instructions you can imagine the tubing we installed to the torsion tub coming in from the left and attaching to the tube.
Food for thought.