A 32-year-old Beloit man is facing felony charges after police say he led officers on a high speed pursuit overnight Sunday.  Police say the chase began a little before 1:00 a.m. Monday when a patrol officer spotted a car swerving off the road and knocking down several mail boxes near Skyline Drive and Murphy Woods Road.  The pursuit ended when the suspect flipped his vehicle in a cornfield near Huebbe Parkway and Claremont Drive.  The suspect is facing charges including felony fleeing, possession of THC, and carrying a concealed weapon.