I hate spots like this... 5/10 6max

[gomberg]

I raise UTG to $45 w/ black TT, poster folds, BB calls. He just sat down w/ $1k - no reads, his first hand.

Flop 367 w/ 6h7h. He checks, I bet $75, He checkraises to $250... No idea what to do here. This is for sure a commitment decision (damn good raise on his part w/ the hand I have). Given no reads - is this too marginal a situation to call / push with?