Change the exhaust to the turbo 2 exhaust mani. Custom pipe from turbo flange to whatever your gonna run. Intercooler set up with piping running to carb (they call it a blow thru setup), which brings me to the biggest part. You either need to modify whatever carb your running to work with the turbo setup, or buy one. I believe holley was making a blow thru carb setup that was pretty good, but im sure there are others.

Now, just to set it straight, i have never used a blow thru setup, or a turbo carb car. But it has been done, and there is tons of info out there, but that should be a good place to start.