Lucky Khera had topped the leaderboard for five months but there has now been a second change at the head of the order in three weeks, thanks to Harrison's dominance at Croft.
The teenager was unstoppable in both Historic Formula 3 and Historic Formula Ford 1600 at his local track - sealing the FF1600 crown in the process - his combined winning margin across the four races being an impressive 2m15s!
