FARGO, N.D. – Hentges Racing’s Kody Kamm dominated at the opening rounds of AMSOIL Championship Snocross, first taking the Dominator win aboard his Polaris 600R on Friday. He then went on to claim the top step of the box for the Round 1 final at Red River Valley Speedway in Fargo, North Dakota, and followed it up with a runner-up …