You'll need ~4" of lift to clear 33" tires, assuming you don't want to hack up the body to make room. As far as width, it all depends on the backspacing of whichever wheel you choose to mount those tires on.
Also, please search before posting something like this. It has been asked and answered a million times; but you're new here, so just remember for future refrence. Additionally, please fill out your profile and vehicle information so that anyone attempting to answer your questions will have an understanding of what you're working with. Thanks.
Click for build thread: HONEYBADGER
>>>the single greatest investment you can make for your jeep is to buy a good welder, and learn how to use it<<<