sounds to me like you'd need the wheel to sit farther out if its about to rub the strut, i think negative offset is what you might be after, that is assuming your offset is zero currently.
do you have aftermarket wheels? i have enkei 92's on my ae86 that have all the info listed on the back cast into the wheel itself. mine are 15" tall, 7" wide wheels with 114.3mm lug spacing, 4 lugs and -0 offset, casting in the back of the wheel looks something like this: 15x7 114.3x4 -0
offset would be the amount, i believe in mm, that the mounting surface for the wheel is from the center line of the wheel. for example since mine are -0 off set the wheel face is in the direct center of the wheel. negative offset, for example -25, would be 25 mm closer the the inside lip of the wheel from the center of the wheel. meaning, the outside lip of the wheel would be farther away from the mounting surface.
positive offset, for example +25, would mean the mounting surface would be 25mm closer to the the outside lip of the wheel as measured from the center of the wheel.. kinda hard to explain without pictures but a quick search on google should explain all.
hope that helps!