Disk Brake Conversion question

I had just done a disk brake swap on my 72 Dart. I had installed the Calipers on the rear of disks instead of the front. Is there gonna be any issues if I leave the calipers on the rears of the rotors rather than the front. The only immediate issue I had noticed, and may not be from the install, is that the wheels are toed out about 2 1/2". Should I switch the rotors/spindles so the calipers are on the front of the rotors?