[XXXNoahXXX]

Even in a tourney with a relatively high buyin, raising standards during the first 30 minutes especially are pretty wide open. People will be raising with any of 20+ hands, a lot of which you beat or are a coinflip. Postflop you should be able to find out where you stand fairly cheaply. People don't often raise in relation to the BB so early in a tourney, so even though a 100chip raise seeems like a lot compared to the blinds, it doesn't hold much value this early in a tourney. Call and if you hand doesn't improve, let it go, but this is too good a hand to lay down before getting a read. Later if a supertight player made this move you could consider folding, but not here. If you flop a K or A and he makes a move, maybe you grit your teeth and lay it down. The odds of him rasing here with AQ, AJ, 99, and various other hands is too high to let this one go.