Need some advice....

[BulldogMafia]

What do you think is the right move…. Late in a Pokerroom multi table tourney, 42 people left out of 172 and I am below average in chip stack. I have T4100 with blinds at 200-400 when I hit the BB. Someone who just recently (less than 3 hands earlier) was placed on our table with T14,000 in chips just limps in from mid position. It is folded to me in the big blind with AKo. I pushed and my single opponent folded giving me T1000 (BB+SB+T400).

Do you think I should have slow played it a bit to try and gain more money after the flop hits or did I play it right by just pushing my advantage pre flop??