That hurts my back just looking at it. Last time I did something that heavy I pulled something in my lower back but didn't realize it until a couple of hours later. I could hardly sit or sleep for two weeks. Strange though up until that point it was nothing to do deadlifts with 70 or 80 lbs. I had been doing them for several years without much thought. Now i'm content keeping it around 50 or 60 lbs and it's still effective for me anyway.
Annette