In a food processor, combine 2 cups pound cake, 1 cup pecans and 1 cup confectioners' sugar. Pulse several times to mix well.
Add 1-2 tbsp bourbon, a little at a time, just until moistened and it forms a soft, pliable dough.
Turn out dough onto work surface lightly dusted with confectioners' sugar.
Dust your hands lightly with confectioners' suger, pull off walnut-sized pieces and roll them between your palms to form compact balls.
Roll them in cocoa.