I do 3 sets of 15 crunches, then 3 sets of 15 reverse crunches, then 2 sets of 15 bicycle crunches.

I cut out sugar, cookies, candy and most breads, although I eat oatmeal for breakfast daily. I eat vegetables and lean meats for dinner and a can of tuna in water for lunch.

5 days a week I work with dumbbells doing 2 sets of 30 reps of bicep curls at 10, 12, 15, 20 and 25 pounds. I then do 2 sets of (trying anyway) 20 triceps curls at 110, 12 and 15 pounds. I just started doing 2 sets of concentration curls at 20 reps with 10, 12 and 15 pounds.

I also walk about 2 miles daily, except a day or two on the weekend.

I have been doing this since about March 15 and have gone from 278 pounds to 245 pounds. I would like to get to at least 220.

My question is this:

As I look at myself cross section in the mirror, my belly is still out there some. I know the crunches are tightening up my surface abs, but if I suck in my gut, naturally, the cross section view in the mirror is of me thinner cross-sectionally.

What exercises can I do to tighten up the stomach area to get that same look that I get when I suck it in?