Stars 350K bustout hand - too reckless with 88?

[Mad Genius1]

About 400 left, blinds 400/800 ante50, I have 14K. In the SB, I get 88. Folded to MP (bigstack) who raises to 2000. Folded to me, I call, BB folds. Flop comes 972 two hearts. Pot is ~5.2K, I lead for 3200. He thinks for about 30sec and minraises me to 6400. I push for ~5.3K more.

Stupid push? I told myself I would fold to any raise, but changed my mind last minute...