63 Dart: biggest steel wheel without mods??

I tried a 15x7 with 4" back spacing on my 66 Dart and a 215-70-15. Here's a thread.There's still more space for a bigger tire but 225 or 235's are hard to come by. Here's a link to a tire chart that will help too. tmm


http://www.forabodiesonly.com/mopar/showthread.php?t=235134&highlight=tire+chart


http://www.team3wheels.com/tech_specs_tire_chart.html