Freeline a big gizzard or go to jacks and get the biggest bait they have. You said big fish, not big bass, so I've seen giant catfish caught down there and netted one for a buddy last year that was 92lbs. He caught one a while back in the same area that was 98lbs. Cut bluegill and cut skipjack is the deal and caught both those fish. I would think thats about the biggest thing you will catch down there unless you hook a massive paddlefish or sturgeon, but I'm not sure if the sturgeon that were released are that big yet. Good luck.....and youtube helps too as it shows others catching big guns down there. Oh yeah and don't confine yourself to just the pier. There is a lot of opportunity down there!