[tubman]

Well, my '51 Custom has almost 80K miles, but it is a good original as well. I use it to test carburetors that I rebuild. Mine is stock as well, and I've had a few 2110's on in over the years. I've never had a problem with a properly built example of any of this family of carbs. That being said. I highly doubt if you could discern any performance increase at all with the 2110.