Even in Vintage competition the quest is still for more power to gain those vital 10th's of a second over your rivals! He we see the Stratford-Rudge being tested on the DPX2 Dynamometer belonging to David Holmes.

Mervyn and David extracting more power from the Stratford-Rudge.
 

Mervyn and David extracting more power from the Stratford-Rudge.

Dyno Graph showing maximum power 27.9 BHP at 8,250 RPM
 

Dyno Graph showing maximum power 27.9 BHP at 8,250 RPM

Mervyn and Roy at the Dyno.
 

Mervyn and Roy at the Dyno in 1997.