$11 A-3o On Button ITM

Seat 1: Sledge420 (2,850)
Seat 5: Hero (4,040)
Seat 7: tonirockahara (6,610)
tonirockahara posts the small blind of 150
Sledge420 posts the big blind of 300

*** HOLE CARDS ***
Dealt to Hero [3s Ac]
Hero raises to 4,040, and is all in

Should I be making a standard raise or even fold this??