Qa1 uppers. With 17x8. 67 dart.

I mounted the qa1 upper control arms on my 67 dart. Converted it to discbrake's from mbm. I wanted to go 17x8 with 5.25 or 5.5 inch backspace all around. But the qa1's have such a big cup where the ball joint sits that i think i can not clear the wheel.
Anybody experience with this? I've had firm feel uppers before and they looked like that i have more room for the wheel. If i go to 18 inch wheels i probably don't have the problem. But I cannot find them with the looks i am looking for.