[indiana dave]

First off, you don't give much info. What type of engine?
The early 2.3 4cyl turbos were carb'd. But they never would have the potential of fuel injection.
In any "boosted" engine, timing needs to ne adjustaed instantly as the boost climbs... Without the advent of computers & fuel injection, this was dificult to do. Thus early turbocharged cars are few and far between... along with fuel injection, came increased tuning & reliability. And with that, came the ability to run higher boost without the chance of detonation.

A "lumpy cam" is exactly opposite of what a turbocharged engine wants... Talk to a cam manufacturer about that one... I believe a turbo wants more overlap & longer duration.. lift isn't as important.
You'd have to fabricate exhaust headers to mount the turbo(s) to. & some tubing to run it up to the carb. hood clearance would probably be an issue. You'd also have to come up with some type of boost regulator, and timing retard device. Unless you're pretty good fabricator & mechanic, this could get expensive.
I know of a few bolt on kits for the fuel injected 5.0's... Maybe one of them would be a good starting point? My advice would be to call one of these manufacturers and ask as many questions as you can.
I'd do a search on the net for texas turbo, or just carburated trubocharged engines, and see what comes up. Trusting the average joe (V-8 guys) with a question like this is going to get you a lot of mis-information.
FYI, I'm not a expert on this swap, but i do own a SVO Mustang, and have learned a deal about turbos along the way.