I have heard stories about both the weber 34/34 and the motorcraft 2100. I just rebuilt my 258, put 500 miles on it and my carb took a crap, so I am looking for the better upgrade! I have heard that the weber is REALLY hard to tune and the motorcraft is real simple. The problem is that most people I have talked to have used the weber and no one seems to be using the motorcraft. I am looking for input as soon as possible, cause I have to get this thing up and running this weekend, its been down for 3 weeks! Thanks everyone!