Well I think I know someone who has a racer with that engine in the UK, but it's not been seen on a track for a great many years.
As for the Australian Morgan, I'd imagine the supercharged specification of the engine in the UK would put it with the racers - many of whom are using methanol and seriously sticky rubber. Running what look like normal road tyres would put him nowhere. But, if he's having fun, that is what matters the most.
