Fold. There is $110 in the pot, so you are getting 11-to-1 on your call. Your implied odds are even better if you hit your gutshot and it holds up. Nevertheless, folding is right here because of the two-flush. With all these opponents, the 8 could give someone a flush, so that kills one of your outs. Furthermore, if the 8 does not give someone a flush, any one with just one club has a redraw against you at the river. The point is that you will not win all the time even when you hit one of your four miracle cards. There are some lower-order concerns as well, which frequently occur when you have a lot of opponents. The straight you are trying to make is not to the nuts. Someone with jack-nine would have a higher straight. With the two-flush on board plus a lot of opponents, all kinds of draws and redraws are out there, so you will lose a lot of money if you hit but get beaten.