TPGK 6max facing minraise on drawing board

[Kinslayer44]

I never know what to think about minraises, sometimes they are really strong somtimes they are really weak. I don't generally play 6max, is my preflop raise ok or too early pos? Oh and I know it's technically not a minraise, but it basically is.

Poker Stars, $2 + $0.20 NL Hold'em Tournament, 25/50 Blinds, 6 Players
LegoPoker Hand History Converter

MP: 2,649
CO: 1,385
BTN: 2,638
SB: 3,120
BB: 4,643
Hero (UTG): 3,275

Pre-Flop: (75) Q[img]/images/graemlins/club.gif[/img] J[img]/images/graemlins/spade.gif[/img] dealt to Hero (UTG)
<font color="red">Hero raises to 150</font>, MP calls 150, 4 folds

Flop: (375) J[img]/images/graemlins/heart.gif[/img] 9[img]/images/graemlins/club.gif[/img] 8[img]/images/graemlins/spade.gif[/img] (2 Players)
<font color="red">Hero bets 300</font>, <font color="red">MP raises to 650</font>, Hero ???