Originally Posted by TheBig3

Increase stamina insofar as you're lifting. I don't think its going to help your lung capacity, so gains in running or swimming won't be massive. And you're not going to maintain size. Depending on your height, a large amount of strength can hide in svelt muscles. The lankier you are, the hard it is to appear strong.

If you're looking for stamina then Dj's right, doing cals will help. Push-ups, pull-ups, lunges, crunches, full-body pushups...

What are you going for specifically?