Marina SU on late model B

[Patrick Bailey <pbailey@qnet.com>]

A friend of mine put an SU from a Marina on his 77 B replacing the
Stromberg and he says its a straight bolt on except for the linkage.
He says it is smoother,easier to adjust and better top end than the
stock carb and looks like it belongs and probably pass smog better.Has
anyone heard of this mod before?Where can you get one of these carbs?
This sounds interesting as I've heard SUs are better than Strombergs.
Pat