Just got my sportlines will i have any clearance problems

I just got my sportlines from tirerack. Me and a buddy wil be putting them on will i have any rubbing issues with my 275's all around. I was going to have a shop throw them on for me but they want to charge like 400 bucks. So were just gonna do it.

------------------
1993 Black Z28 A4
3" Flowmaster American Thunder cat back,!CAT
SLP Cold Air Induction,
1LE Intake Bellow,SLP Throttle Body Air Foil,
SLP 17" Chrome SS Rims
98+ SS Rear Spoiler,MacEwen White face gauges
Alot more SOON!!
R.I.P. #3

You will need an alignment, and you'll have some issues with speed bumps and the like, but the tires should probably be ok. You may want an adjustable panhard though in the rear, I know with rubber/stock panhard I could corner hard enough to get the tire to rub the inside and the rear of the car would actually kick out, strips the paint on the inside of the tire well showing where it rubbed. I've got 255x50-16s in the rear.