Will 4.5 BS Draglite fit on front of 68 Dart?

As far as the fit on the front end. I'm running the exact size your considering.
I have sbp 15x7 Rallys, custom made with 4.5" backspacing. My tires are firestone firehawks in 225/60/15.
The fit is very nice, no clearance issues with the tires at all. However the inside lip of the wheel is Very close to the end of the upper control arm and ball joint. Its so close that you can put any wheel weights on the back side of the rim cause they will hit the ball joint. Other than that they work great !

I'm running the same size on all four corners. The car has stock sbp disks up front and 8-3/4 with stock spring location in back.

Heres a couple pics

tirefit2.jpg

tirefit.jpg