Great to have this forum. Thanks for your help.
I know that the T-Bird is lazy, therfore I'm going to put in PI heads plus things around it and then tune it all. The plan is that it happens this winter. Then the tune in spring tie.
In order to save money and a lot of time in the garage, I ask before I buy a 3.55 and a 3.73 and then try which one I like. It has to be set correct and that one I need some help with, which I have.
So far I have Vogtland springs. Koni adjust Shocks, thicker sway bar in rear, the new front sway is in the garage and will be changed when the engine is out. Poly bushings in rear, The rear axle frame totally welded, Half shafts in tool steel. Probably a lot of things forgotten that I have changed, but I do a little rebuild each winter and run on the summer.
Summer is great here now. Sun comes up 03.40 and go down 22.33
Again, thanks for your help. Drive safe