At risk of starting a whole different debate - what about using a Keihin? I wonder what model and settings would work best with a wm20? It wouldn't be original, of course, but I'm thinking the Amal price tags are getting to be rather too steep for me.
The logical way to go would be the much cheaper 'Concentric' which fits in the same way and is tuned in the same way....The problem though is the appearance if an original look is required....Personally, I'm happy to fit the 'wrong' carb to any of my other bikes but not the M20....Ian
