While the Ackerman geometry effect could be less (or non existent ) with a rack mounted too far forward the spindle centerline, the possibility of a bump-steer problem could be a bigger/more important headache if it's a drag car. KY is correct that mounting the rack at the needed/required height is important to help reduce/eliminate unwanted toe change (bump-steer) during front suspension travel. But hanging a rack way too far forward the spindle C/L can also be another cause of some bump-steer.
This is because if the rack's outer tie-rod arms are rotated back (aft) at too great an angle the arms are now rotating in an arc that is operating in a much different plane than the suspension's control arm(s) are. Even if the rack is mounted at the correct height, if it's too far forward it could cause a sudden and increasing "toe in" change as the suspension travel approaches either end of it's total travel. If this happens (or not) kinda depends on a combination of how far forward the rack is mounted & how long/short the outer tie-rod arm's center-to-center length ends up being. A rack mounted too far forward can also cause binding/bending/failure at the ball socket joint (inside the rack boot) where the tie-rod is attached to the rack main body.
A rack mounted too far forward might cause a problem, or it might not. The only way to know for sure is to map-out the front suspension's total travel and check for amount of Ackerman geometry effect, and to see if it does/doesn't have any dreaded bump-steer.
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