there are several ways, one way is to slot the upper control arm..
<a href="http://www.geocities.com/MotorCity/Flats/2052/camber.html" target='_blank'>http://www.geocities.com/MotorCity/Flats/2052/camber.html</a>
The also have camber correction kits, like these <a href="http://www.pdm-racing.com/news/news.html" target='_blank'>http://www.pdm-racing.com/news/news.html</a>
you have to go down a little bit to see them.
Or you can do it the best way, and get these:
Cusco Rear Upper Arms