big draw on turn, but what's up w/ villains line?!

[HoldEmNewby]

his line is really fishy. but if we push here i think we've got 30% equity against his calling range. I just think its better to call and take the odds. Its a rough spot because he could have a better flush draw (Ax:spade); but if you push those hands aren't folding anyway. I would just call the turn and hope for my straight to come in.