Villain pushes into my straight on a flush board

Villain is a TAG.

I figure that calling the flop is probably just about okay. I have odds to hit my straight, there's fair chance he's playing an overpair I guess.


No Limit Hold'em CryptoLogic (£50NL)
Converted by FTRConv
6-handed

StacksUTG+1: £51.50
CO: £23.55
BTN: £48.75
SB: £51.70
BB: £58.30
Hero: £47.95


Pre-Flop: Hero is UTG with 8:club: 8:heart:
Hero raises to £2, CO calls, BTN folds, SB calls, BB folds

Flop:(£6.50) 6:diamond: 7:diamond: 9:club: (4 players)
SB checks, Hero bets £5, CO folds, SB raises to £15, Hero calls

Turn:(£36.50) 5:diamond: (3 players)
SB bets £34.70 and is all-in, Hero ???

Given pot size he has to not have the flush/8T often =33% of the time or something.
Is the call right?

Actually, you need 33% equity to make the call, which is different because most of the times he doesn't have the flush he's either drawing to it or a boat so we don't automatically win.

I'm not sure about the turn, but it should be fairly easy to set up some ranges in pokerstove.

How about a flop push or fold?