No. 19 Ole Miss improved to 7-2 (3-2 SEC) on the season with a 63-31 shellacking of Arkansas (5-4, 3-3) on Saturday. The Rebels claimed just their third win all-time in Fayetteville and first since 2008. History was made everywhere. Third-year Rebel quarterback Jaxson Dart was 25 for 31 for 515 yards (a single-game school record), six touchdowns and no interceptions. His 562 yards of total offense are a national record. Dart passed Ole Miss legend Archie Manning, who’d held it for 40 years. “A really good performance,” Ole Miss head coach Lane Kiffin said. “Obviously there’s a couple individua…