Rods only quarter I know of was 11.7, I dont know if thats his quickest or not but I do know its never done a 10.
530bhp in a stripped out sunbeam is probably a better power to weight ratio than rods or martins by quite a margin, shows how important weight is on the quarter.
What make and model tyres was the mk2 on to manage 10s, cause whatever it was, I want some on my car