Ash Barnes saved his best until last as he powered to a 2min 20.204sec lap to beat Thomas Strudwick to pole by 0.760secs on his final qualifying lap.
Kieran Kent was third fastest, ahead of Edoardo Colombi as Alfie Davidson rounded out the top five.
Pirelli National Sportbike with Moneybarn Vehicle Finance, Qualifying:
1. Ash Barnes (Raceways Yamaha) 2min 20.204s
2. Thomas Strudwick (TS Racing) +0.760s
3. Kieran Kent (Frampton & Babel Racing) +0.970s
4. Edoardo Colombi (Gradara Corse Asd) +1.421s
5. Alfie Davidson (IN Competition/SENCAT Aprilia) +1.634s