probably a quart every 300-400 miles if I had to guess. I don't know what to check for to find the revised valve cover
That is a lot of oil to be losing.
How many miles are on the vehicle?
Are you seeing any spots in the floor/driveway?
Have you pulled any of your plugs and checked their condition? Are they covered in oil?
Any oily residue on the rear bumper?
If you put a paper towel in your hand and hold it near your tailpipe do you get any oil spatter on it?
Did this consumption level just start suddenly one day or had it been building up to this level of fluid loss?