Ray - I agree on the Doug Roe book, and highly recommend it. The other Rochester book is Q-Jets by Cliff Ruggles. I have read hundreds of carburetor books since 1958, and Cliff's book is number one in being "user-friendly".
I remember when the Emanuel book was scheduled to come out, ordered one, and eagerly anticipated its arrival. When it arrived, I sat down with it one evening, and read it cover to cover; AND THEN DEPOSITED IT INTO THE ROUND FILE!
Still looking for a really good book on Carter carburetors. But since I have all of the factory literature, I don't personally need it, just would like to be able to recommend one to others.
No comment on the e-clone book, as I have not read it, and do not intend to do so.
Jon.