My truck doesn't get driven more than 4-5k miles a year now. It still has the leaking 1406 in it but I don't care much. It don't matter enough to work out a new brand of carb and learn how to tune it, etc. If I was still daily driving it like I was 10 years ago I would have a dofferent brand carb of some kind on it by now. most likely a good remanufactured Q-Jet.
But my 1406 does what I need even if less efficient than it could be.