General question regarding how to play tournament PLO

[Proofrock]

I'm a relatively inexperienced PLO player, but I enjoy the game. I am wondering if anybody can provide some guidelines for playing tournament pot-limit Omaha, especially with regards to preflop play and blind-stealing.

Typically when I play PLO cash games, I am reasonably loose-passive preflop and TAG from flop on. I raise almost no hands (including AAxx or KKxx) preflop, and I don't take many stabs at the pot without a big hand or a big draw (meaning I may bet at a flop with an unimproved overpair, but I check-fold to any later action).

What adjustments do I need to make when playing in a tournament, especially as the blinds increase and the stacks become shallow?

Thanks in advance for any advice.