Board: Qc 4c Kd Ad

Hand 0: 34.897% { AsKc }
Hand 1: 65.103% { 44, AQs+, QdJd, QdTd, JTs, AQo+, JTo }

I think this is a reasonable range unless you think he can raise you with AJ or AT as a semi-bluff which I don't think is likely, he's more likely to call the turn
I'm not even putting QQ+ in his range