Turbo 360

Conservatively?

You need about $3500 to do a full single turbo setup.

That would cover:

Turbo Headers

Turbo, flanges, couplers, clamps, oil feed, oil drain, air filter.
Fuel Pump, Regulator, Upgraded Fuel Line, Blowthrough Carb, Carb Hat
Blow Off Valve, Wastegate, Charge Piping, Turbo Exhaust.

That DOES NOT Include ANY LABOR or tools.....and does not include a Boost Compatible Ignition system, anything in the cooling system, or any of the rest of the drivetrain....and all of that will need attention as well.

Its a costly, but worthwhile adventure.
Just a small turbo.....like a 62mm would make 450 Wheel Hp at 7psi no sweat.
I recommend a minimum of a 70mm compressor, and a T4 .86 AR exhaust on any single turbo V8.