I just bought rims....but i don't kno what tire sizes i should get?

Hello everyone, I just bought some LM5 lorinser 19x9.5 in the rear and 19x8.5 in the front and im wondering if n e one knew what size tires i should get......I was looking around and it seems to be that the max profile tire i can fit is 265/35/19 in the back and 235/35/19 in the front...does n e one kno if i could fit 275/35/19 in the rear and 245/35/19 in the front..........???????? what would happen if i did put them on? (would there be rubbing?) and if so would rolling the fenders solve the problem..??? If n e one out here has put 275/35/19 in the rear and 245/35/19 in the front...please let me kno ur results and advice....thanks