Pro Touring 4 link setup

[454SSguy]

I use the term "Pro Touring" very carefully. I don't think I could classify my build as pro touring but it definitely has been affected by the concepts of pro touring. I have got quite a few parts in so far and I'm still trying to keep everything super practical (going, stopping and turning), more info in my build thread if you guys wanna read all about that. I'm hoping you guys can help me determine my IC and where to set the watts link.

Setup is a parrallel 4 link, bars will be between 21-23" Center to Center
Coilovers are strange SA 11.25"-17.25" shocks - mounted 10*-15* inward at top
Watts link- Chassis mounted pivot, parts from Fays2, custom pivot mount bracket
Any help or info would be much appreciated.