I have a 69 dart with the offset shackles and the lips rolled tight to the quarter. I run 10.50x26 sportsman pros. There is no way to fit more on my car. My car sits a little lower than some of the darts i've seen that have more of a SS stance.
Mine seems to sit a bit lower than I thought it would with new 002/003 as well. I actually ordered a bunch of lowering blocks thinking i would be right high as some folks on here have had to do that with their cars. In my opinion it sits nice and squats even better. I set my pinion fairly aggressive and it feels good when your foot is in it