[strictlypersonl]

The rack's position front-to-rear determines how much Ackerman you have. (Google that...)

Bump steer is controlled by the height of the rack and the length of the tie rods. Generally, the tie rod should be close to parallel to the angle of the lower control arm (as viewed from the front).

The inner pivot of the tie-rod should be roughly on the line connecting the pivot axis of the upper and lower control arm, again as viewed from the front.

To get things really right, the final adjustments should be done by actually measuring the bump steer. 1/8" off vertically is pushing the limit of tolerance.