Well done. Where did you get the new old stock part? Old landies seems to be condemned to have only zenith or Webber carbs, neither were brilliant compared to more modern carbs. When you think of the many different carbs that have been used in the past 40 years, there must be a good one somewhere that would be ideal for an old landrover. In the 70's and early 80's I found SU carbs to be good, not particularly great for performance but were reliable and always worked as they should.
Col