Let's remove another constraint. In a poker game you will almost never get to see opp's cards before you have to make your decision, so SB does not show you what he or she has before shoving. However, from your observation of his/her previous play, you are confident that he/she would shove with any pocket pair, any ace and any two broadway cards.

What is your expected value of calling in this case? Again, plug it into Pokerstove:

Code:
	equity 	win 	tie 	   
Hand 0: 	57.673%  	57.28% 	00.39% 	   { 8c8s }
Hand 1: 	42.327%  	41.94% 	00.39%     { 22+, A2s+, KTs+, QTs+, JTs, A2o+, KTo+, QTo+, JTo }
So you win 57.28% of the time, lose 41.94% of the time and tie 0.78% of the time.

Expected value = (0.5728 * $100) + (0.4194 * -$100) + (0.0078 * 0) = $15.34.