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his line looks exactly like QQ, 44, 77 or maybe a 4 7 suited depending how much he likes to gamble and take multiway pots deep stacked.

I say you also need to judge how smart and deceitful he is, and how smart he thinks you are and if any of that is even relevant after the number of hands you played with him.

I say this because it looks so obviously like a big hand maybe he is trying to pull a fast one on you, but i think to go with that read you need a lot of history and a lot more information.

I would say folding isn't bad here, although i do wonder how many times he's taking this line with an AQ or something a little bit worse and if that should factor into any decisions.