I got it once. b22xxMB SP 4 LK^6 b22f4xxRMS. Feels tighter than Liu's IAFB combos from MKX, so I wouldn't say it's worth attempting.
However, with a tiny revision, the Zyphox 1 bar is pretty legit. Assuming it is known, but saying for posterity's sake
b22f3xxLK d1d2xxMB SL f3 b22f3xxFoF does 541.70 against Superman, competitive mode on.