[Wbulk]

Heidts use to have some really good technical articles on their website explaining theory of design. One of the critical things is that the steering rack inside joint, the lower A arm pivot point, and the upper A arm pivot point should all be in a straight line. At ride height the lower and upper A arms should be close to level. Make sure you have the right width steering rack to make those pivot points line up or you will have some bad bump steer. The location of that rack, up or down, can also throw the alignment of those pivot points off. Lay it all out on a large piece of paper before you start welding. Most suspension have about 4 deg. of anti-dive built into the angle of the upper A arm.