This is a conversion with mixed benefits.
Pluses:
The Rochester B is not one of the better carburetors built.
The Rochester 2G is one of the very BEST 2 barrels built.
Minuses:
Testing we have done suggests that to break even from a good??? Rochester B to a 2-barrel, the adaptor needs to be at least 6 inches tall.
A much better way to do the conversion is to change intake manifolds.
Jon.
