By Chris Rosvoglou Arch Manning continues to put the college football world on notice. On Friday night, Isidore Newman trailed Benton by 18 points at halftime. Everything changed in the second half, as Manning threw four touchdown passes in the final two quarters. Manning’s best play of the night took place on fourth down. Isidore Newman needed 13 yards to pick up the first down. Manning, however, was thinking about going for glory. After rolling out of the pocket, Manning fired beautiful strike down the field for a touchdown. Check it out: Manning completed 22-of-38 pass attempts for 317 yard…