'76 B carburetion modification

[Ella Mae Bolton <embolton@clark.edu>]

Hi, 

I have a 1976 MGB Roadster with which I have a real "love - hate" 
relation ship.  

To the point, it's a California Car and has a single Zenith carburator.
I've installed a manual choke kit because the auto choke element has
failed.  

Does any one know of any thing that will fitup on the original engine?
If I can find any thing that will adapt (w/o too much hassle) to my engine.
The idea of using 2 dual webers is also on the list.

Thanks in advance.