Irma needs to rent a car for a business trip from Phoenix to San Jose (720 miles one way).  She will drive round trip and will be gone a total of 8 days.  The car rental company charges $65.00 per day and allows for 1,600 miles for Irmas's trip.  There will be an additional charge of $0.24 per mile over the 1,600 miles allowed.  How many total miles can she drive without exceeding her budget of $600.00?