Headers for Indy 440-1 Heads in a Duster??

Ive got the torsion bars gone as well, but even now the passenger side inner fenderwell will get touched on occasion by the header when revving. And TTi says the 440-1 heads are 5/8" wider and 7/16" raised which in my car wont work asis.
Bob are you using motor plate or mounts?
Yes a motor plate, and rack and pinion steering. Couldn`t u just neatly adjust the fender well a little ? (massage w/ a hammer) I did have TO LOOSEEN MY STEERING COLUMN AND PRY IT OVER IN THE FLOORBOARD HOLES, AS FAR AS IT WOULD GO, AND RETIGHTEN THEM . " disregard caps !" Wish I would have put spacers between the frame rails and k frame before I cut my steering shaft to length, it would have helped me about everywhere, especially w/ no 7 plug, its impossible to get to w/o raising the engine or removing the steering column ! I have already stripped the plug hole, but got it to work, will have to heli coil it if I ever have the head off or have to change plugs !