negative camber

Im new to this, but im tryin to VIP my 07 gs350.  Got some 20" wald d23s and I want to tuck my rear wheels and need to get some negative camber..what do i need to do get this done?  Currently ive got tein cs2 coils. 

Thanks in advance...

LOWER IT MORE! :dance:

A reply back would of been nice, but that's cool...

[QUOTE=Wald GS;59286]A reply back would of been nice, but that's cool...[/QUOTE]

sorry about that..i should have replied...