It really doesn't matter if it's a drag race car, a road race car, circle track car. The theory of bump steer is the same for all, that is all I am saying. As for 0 bump steer being impossible you are very wrong. I have set up my car with a rack & pinion out front and it has "0" bump steer through out the entire travel. I also set up the famous Red Alert Chevelle to "0" bump steer because they put a big oil pan on it and they bent the idler arm and pitman arm down to clear so we had to adjust the outer steering arms to match. My friend had a late model circle track car and they ran 0* left and 2* right side caster with a manual box, with a power rack they ran 3* and 5* and this was on a 1/4 mile and 3/8 mile tracks. I don't know why you think a drag race set up wont work on the street other than I run my camber at 0* Toe at 1/16" in and caster at around 3*, worked perfect for me on the street.
