eddieflatface

I have a 17 Silverado and I've had an Eibach pro-truck lift system stage 1 ordered since Thanksgiving but they say they're waiting on springs and don't know when they'll be getting them. I have Readylift uca's ready to go. My problem is I need tires now and wondering if I could put 275/60-20 on and get away with it until my level kit comes in. How bad will it rub? Any help is appreciated.