This is confusing...you ask about fuel injection and carbs...which is it?
How much boost? What are your hp goals? Pump gas?
What are you doing to the engine, to support the turbo? Pistons, rods, o-ring the deck, stronger valve springs etc?
You can modify a pick up and install it on the countershaft cover, to get your wheel speed and use a modern speedometer.
You don't have a cable driven tachometer, it uses an electronic pick up.
Mr. Turbo still supplies simple carbureted kits for your bike.
Mr Turbo | Turbo Systems
Nobody makes an aftermarket bolt-on electronic fuel injection system for your bike. So you have to be really smart, and know how to build what you need, be fluent in "megasquirt" speak etc...or be willing to pay someone else to do it. It's all been done before.
Throttle bodies can be re-racked to fit the oilers.
Cam position sensors can be modified to fit our bikes as well.
A single carb system is starting to sound good?
If you have to ask, then you really don't grasp what is required.