The first thing you should do is read the essay called "A Few Omaha Odds" by David Sklansky, which can be found on this site.


Yes, you should call. You'll make a low about 28% of the time and most of the time it will be the nut low. Since you (correctly) raised preflop, there should be at least 15 small bets in the pot. Since you'll win half the pot around 1/4 of the time you have an overlay.


Then again, what do I know.


Rube