send e-mail to rick@pa-performance.com and tell him what you have and that you got their name here. They know what to do and sell a nice kit to do that upgrade with no modifications. if you want to do the swap yourself he'll tell you how. they are awesome to deal with - great customer service. we did a 67 mustang with them. any 5.0 before 86 needs what you are looking for.
they just had a project in
http://fordmuscle.com/archives/2001/...ce/index.shtml
and i think rick told me they were going to be in mustang illustrated and muscle mustangs for july with projects