I get almost exactly 50/50
6 ways to have QQ+ = 18
3 ways to have the sets except 44 = 7
So you are usually ahead, but I assume you knew that.
I think this is your problem:
Board: 4c 8h 7d Qc
Dead:
equity win tie pots won pots tied
Hand 0: 18.182% 18.18% 00.00% 432 0.00 { AA }
Hand 1: 81.818% 81.82% 00.00% 1944 0.00 { Q4s, Q4o }
equity win tie pots won pots tied
Hand 0: 49.318% 49.32% 00.00% 3906 0.00 { QQ+, 88-77, 44 }
Hand 1: 50.682% 50.68% 00.00% 4014 0.00 { Q4s, Q4o }
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