This is 30 euro reg speed match, villain was raising junk a lot and played it along these lines: bet - check - bet big air, or check - bet - bet small medium strength hands like flopped middle pair. He called my first 3bet w 76 and get small value on the river w straight.
Hero (BB): 1,505 (37.6 bb)
SB: 1,495 (37.4 bb)
Preflop: Hero is BB with ...
SB raises to 80,
Hero raises to 240, SB calls 160
Flop: (480) 3
9
4
(2 players)
Hero checks,
SB bets 240, Hero calls 240
Turn: (960) Q
(2 players)
Hero checks,
SB bets 1,015 and is all-in
How credible villain's line is in the hand, what is the minimum we need to make a call here?