By Bob Pockrass
FOX Sports NASCAR Writer
RICHMOND, Va. — Kevin Harvick went 687 days without a NASCAR Cup Series win.
Now he has two victories in the past eight days.
Harvick led the final 48 laps Sunday at Richmond Raceway to become the first back-to-back winner of the NASCAR Cup season as he rode the momentum from his Michigan victory a week ago.
Kevin Harvick holds off Christopher Bell to win at Richmond
Kevin Harvick holds off a…