Front is lower than rear on 2014 Cherokee

I'm new to the Jeep world I got a 2014 Jeep Grand Cherokee limited with the 5.7 hemi. I recently put the OME suspension lift on it (2.5) and have yet to do tires but my questions are....
I noticed front is lower then back and I'm thinking because of the bigger motor has anyone put a suspension lift and I was thinking maybe adding like a 1-2 inch block in front to help out with leveling any thought or suggestions????
Other question is I have 20's on my Jeep was thinking about putting 275/56r20 on them what are people using and if so are they using off sets also???
Loving the Jeep just trying to make it my own now.

 

Generally there is a natural rake on the vehicle. The front tends to sit an inch or so lower to accommodate carry a load in the rear. If they did not do this everytome you try and haul something you would have bro lean. As far as 20s, sorry amigo not a clue.

 

Thanks
Yea seem to me that since I put the OME on that is more notiable of a lean forward.