KQs in NL tourney preflop?

[iH8poker]

That's a generally question that I'm curious about (in different positions, raised into, ect.). Here's the hand that prompted this: WSEX $5k guar. mid way through

Seat 7 is the button. Small Blind $75, Big Blind $150

SB, amount $500
BB, amount $5,500
Player 1, amount $1,750
Player 2, amount $1,250
Player 3, amount $2,750
Seat 4 (playing) : Player 4, amount $2,500
Seat 5 (playing) : KQs, amount $5,250
Seat 6 (playing) : Player 6, amount $3,250
Seat 7 (playing) : Player 7, amount $3,250

SB: Small Blind ($75)
BB: Big Blind ($150)
Player 1: Fold
Player 2: Fold
Player 3: Raise ($450)
Player 4: Fold
KQs: Call ($450)
Player 6: Fold
Player 7: Raise ($1,000)
Player 8: Fold
Player 0: Fold
Player 3: Fold
KQs: xxxxx?

Reads: Player 3 is pretty solid, and I put him on a low pair (he has bluffed some big pots and has been selective on his starting hands). Player 7 has not been in many pots yet, so he is tight. Blinds start at $20, so only the better players are left now. Player 3 took a while to fold, which made me think it was definetly a pair. My table image is good, but I've obviously won a few bluffs. I'm playing about the same number of pots as player 3.