I would like to put a level lift on my truck I have 285/7516 pro comp MT nothing big just for hunting but would like the front end up more. Whats a good kit for this there are so many now and any problems with this concept of T/B keys do I need to add ay blocks in the back as well some kits have both as well as extended shocks (Off road Unlimited)  thanks for any help here  

Just by replacing your t/b keys you can level you truck out. You dont have to replace your shocks because the factory shocks are long enough, not to mention why get rid of Bilsten shocks which come factory on your truck the shocks the other company sends you may not be as high quality.   BUT take note your truck will ride rougher. And you will need to have a front end alignment after replacing the t/b keys.  

Have your cranked your torsions yet? You should get a couple inches in the front without replacing anything at all, just tighten up the torsions... Obviously its not good to max them out, but adding a new torsion key is going to do the same  

You can clear 285/75/16's on the stock wheels by cranking the stock keys up.  My brother-in-laws 04 has that size Cooper Discoverer STT's on it.  Other than cranked bars(stock keys) it is stock.  It rides a little stiffer, but not like a log wagon.