And I need them to be fully cooked in 2 hrs. chickens are on the top rack pork is on the bottom and they all have vegetables in the pan
This is a tough question - how big a pork roast and how big a chicken? I think you will need to start to pork first, but typically you start pork on high heat (say, 425) then turn the oven down (225), which means a low and slow roast on the chicken which I have never tried ... but I just looked around a bit and found some where the chicken was roasted 1 hour covered and 1 hour uncovered at low heat. Make sure to check the temps on both to be sure they are done enough!