Also, from Motorbooks International, "Fuel Injection Installation, Performance Tuning, Modifications" by Jeff Hartman. Dunno if it's still in print, but the second chapter alone is worth the price of admission. Strips the whole thing down to the basics from the standpoint of "air, fuel, spark" rather than "this is how it's different from a carb." He "builds" a theoretical EFI unit, then adds and takes away features until he has a carburetor. "Oh, no! We just invented the carburetor! But does it suck or does it blow? It is, in fact, the higher pressure of the earth's atmosphere that forces fuel out of the float chamber and into the low-pressure area of the venturi. So I guess we can conclusively say that the carb blows."
Great stuff! There's also a load of example installations at the end of the book, including a turbo efi, a system scavenged from another car, and an aftermarket system.
I need to richen up the mixture do these books provide the answer!! 
Perhaps i have found the holy grail 
