5/5 Flopped Straight

[nathanielt]

Playing a pretty aggressive 5/5 game and I get dealt JTo in MP. I limp after one limper and there's 7 to the flop.

The flop comes out 987 with 2 spades, so when it's checked to me, I bet a little over the pot, $40. Too many cards I probably won't like. Next player raises to 140 and it's folded back to me. Does anyone go for the checkraise on the flop? And who pushes? I thought it would give my hand away and plus I'm pretty vulnerable with that board. Oh, I had about 500 and he had me covered. I thought it would give my hand away and plus I'm pretty vulnerable with that board.

At this point, I don't put him on spades, because I don't think he would raise so much with just a draw and 5 people left to act. What's your play when the A of spades hits the turn?