I went to a number of Elvington records weekend, and I was there when Commuter ran flying mile- although it was only a very short run into the mile. Tony ran something like 260 which was fast by the standards of the day, and the rear wheels were very out of shape, not being designed for those sort of speeds. I was sat in my pushcar right behind the startline waiting a turn when Clive Skilton went looking for a 200 terminal on the 1/4, no burnouts then, you came to the line, the RAC steward made sure you were in the correct place on the line, and you went when you were ready. Clive went! Revolution 2 made a fabulous sound, and the engine note went up and didn't lose any revs until he shut it off. But we didn't see a thing! It smoked the whole 1/4, and the smoke took forever to clear, and when it did there were two black lines zigzagging the whole distance.
When he shut it off the whole place went quiet, and then the speed came over the speakers and everyone was whooping and yelling.