I ran a QA42 on a 12hp Cub 106 for years and it would always have trouble with slush but I had swapped out the pulley for a 3.5 stock pulley from Ace hardware, cast iron Not aluminum(they won't hold up) goood snug belt, well painted blower housing and chute. It would put snow out to 20' feet depending on conditions but always got it off the drive.
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