How to install a 7.5 motor into a 1973 Mustang on 1994 Ford Mustang

I need to intall a 7.5 motor into a 1973 mustang. Can somebody tell me what is need to do this. right now it has a 3.0 but I want to replace it with a 7.5.

Asked by for the 1994 Ford Mustang
This is a hugely complicated enterprise, and you need the assistance of someone who really knows what he or she is doing to work through this with you.
Yes, the person that is doing the work knows that its something complicated but i need to know what is needed.