Yes, that's where I got the number from, but it _IS_ height, measured from the ground to the center of the headlight.

Don, my 88 is set up at stock height, right around 33 1/2 " to the center of the headlights. I can't fit a finger between the bumpstop and the control arm. Remember your geometry though, since that bump is set pretty far back on the control arm, that the distance the ball joint end of the arm moves before the arm hits the stop is gonna be much more than the distance from the stop to the arm.

Set it up at 33-34 and you'll be fine (IF you are going for stock height).