The very best situation is to put the arms behind the axle. That being said, a ton of cars (including my old 23) had them in front because there was no room for a tie rod behind. The only thing the car did different from any car I have had with it behind is that the tires scrubbed slightlly when making a sharp turn, like pulling into a parking spot at a mall. Otherwise it tracked fine going down the road and in normal driving.
The fly in the ointment is being able to install a stabilizer. Some people mount one from the middle of the axle out to the tie rod, but I think they look pretty bulky out there. I never could figure out a way to put one on my 23 and I would have loved to have one on it.
Don