There are many things you have to understand before you put a turbo on, most people think you can just go into your garage and put some bent tubes togather and it will all work perfect but you have to use mandrel bent tubes, so all the air will flow, and the right blow off valve with the right intercooler. I have saw many people just buy 2 turbo's from a junk yard from one of the ford turbo cougars and then they put it all togather and they wonder why their cars only fun high 12's. Its b/c they dont know what they are doing, I am not saying you dont know what your doing i am just trying to prevent another name added to the list. Check out some of these sites and then do a search for mustang turbo kits, that will help you out alot.
http://twistedtwins.stangnet.com/home4.htm
http://www.proficientperformance.com..._Code=PTK-FS50
http://www.turbomustangs.com/index2.htm
http://www.geocities.com/MotorCity/Garage/1378/
Here is a site for the tubes you MUST USE
http://www.mandrelbending.com/stock.htm
Hope this help's if you have anymore questions fee free to PM me