are you planning on going EFI or carby

you will need

turbo (t25 maybe?)
intercooler
custom manifold for turbo
oil and coolant feeds for turbo
low comp pistons or a head shim (see forum for details)
if you are going EFI ,you will need a rising rate regulater to compansate for boost
and the list goes on ,it all depends on how much you want to spend and what you want out of the motor