changing upper a-arm mount locations. Wanting input please

[tubbedII]

I don't understand any of this, but changing this mounting point made me think of the Guldstrand mod done in camaros/novas. Moving the upper a-arm mount (in this clip at least) is said to gain some negative camber and a higher front roll center. The mod looks like it moves the mount down and a hair back...don't know if this can be applied to the truck's front geometery, but I figured it's worth posting for some experts to chime in:
http://www.pozziracing.com/first_gen...sion_geome.htm