Dbzokle would say "sure thing", as he has been looking at running just one on his ME headed US 250.
The 1980 to 1985 CFI unit from the Lincoln/Mercury/LTD separate frame 114.3 wheel base Fords with the 5.0 will fit the bill. Cheap and easy to get, but harder to calibrate because..no-one has done CFI duals or triples ...yet.
The injectors are stock Bosch types, so you can run it as a Port EFI with a more inderect line into the cylinder head.
Each gives 120 hp and 213 lb-ft per throttle body in the first year, and about 140 and 225 in later years. 2 of them might j-u-s-t be able to feed your screemin' Hudson, 3 would certainly do it justice.
Do remeber though, that the atomisation of the gasoline from the fuel injection isn't any better than the Holley 2300 because the CFI unit impinges on the back of the throttle blades. In your case, it will not cause any problems.
The key to making it work is linking each injector to a bank fire MemCal or CalPack Delco computer, and then burning an eprom for it. The throttles just have to link up to one Throttle Postion sensor, and that's it, all your tuning is by pulse width. Ignition can stay separate. Options is to use a sequential SDS or MegaSquirt. There is so much adjustability in those set-ups that I'm quite sure they are great options.
There is nothing esle in your way. Base idle on the CFI is by an EEC module which is pretty basic. There is a large air blead idle control system which could be hooked up against just one CFI.
There may be someone on the Big Block six forum who may be able to hack into the 1985 to 1996 EEC computer, and link it up to two or three throttle bodies.
To make rapid progress, find which system you are going to use, and then stick to it. After you've done YOUR homework, don't let others sway you. There are dedicated experts around who wil make sure your set-up is state of the art. The idea of Fuel Injecting a Hudson is something every EFI expert in America would be interested in!
Personally, I'd go for the Delco set-up, and adjust the injection pulse widths. There are a raft of Windows 95-based systems which will allow you to hack the system for the price of a used 250 buck lap top and some dyno time.
One question, how are you proposing to do the engine inlet and air temperature and fuel table corrections? Most EFI systems are adjustable by ressitance or by table. Effectively, you arrive at the drag strip, check out which bulk correction for humidity and air and seal level correction is and run bunch or pre set EPROMS's form a grocery bag. Sort of like what carby guys do, but every run will be the same!