Uh... my dart had a factory sway bar was still rear steer. I just don't see how that's possible. I discussed this very thing for for a couple hours with Ron Sutton a while back before deciding to just go full aftermarket. There's no way with a factory spindle flipped like that will have proper geometry. You may not notice it though unless you're running wide sticky tires.
Actually I have, you forget, this dart isn't my first Mopar, I did successfully complete a 451 stroker swap into my 74 charger, granted it looked like **** but it ran and drove great.... thank you very much
plus this topic has been beat to death in the past, with experts like Ron Sutton Bill Reilly, Hemidenny and Carl Gerst all in agreement as to the geometric issues caused by flipping Mopar rear steer spindles. The question really is just how noticeable is it.