Jon, "Rochester Bs fail over several years"? That's about the nicest and most optimistic thing I think I've heard you say about that carburetor.
Correct, but in the same post I stated REAL carburetors fail over decades

All joking aside, when I was much younger and had time to build B's for those with show vehicles who were independently wealthy (and didn't care about remaining so

) I restored several. They were generally good for about 5 years. But the time to PROPERLY do the B was about the same as to restore a dozen Rochester Q-Jets! There becomes a point where, even when one knows the time spent is there, one just doesn't feel comfortable about charging a customer.
As one ages, one learns that time is one's most valuable asset. I see no need to waste any of what I have left on a B.
Jon.