BB: $384.80 (Hero)
SB is 52/19 over 21 hands. No other reads.
We have some fairly good blockers to the straights here. I would definitely be shoving all my straights here because of how vulnerable they are so I'm thinking a hand like this would also make a good semi-bluff shove OTT considering his bet-size looks a bit weak to me.
That being said, this fishy looking SB leading into 4 players probably isn't looking to fold - blockers or not - so maybe call is better?