Don't know myself but I know people who have Matchless 3 wheelers and this depends a lot upon cams and settings, as you sit on the road you get a feeling of speed and of course you corner better, an F series would be a bit flat with a small Ford side valve motor, almost anything would be faster. A Coventry Climax 4 wheeler with 1100 engine should be OK and notably better than a 1100 Minor. The handling will be better too which is where the big advantage lies - unless you know different of course?
