manual mode

Hey guys I'm new to this forum, and was hoping you could help me out with some answers. I currently have a 1966 mustang with a C4- 3 speed transmission. Its running great, however the RPMs are very high when cruising at about 50mph. Would an AOD swap help out? and can I use a transmission from...

I have a 1999 Mustang V6, no mods done so far. Its automatic. I cant sell it and buy a GT or do a transmission swap... so I am wondering, is there anyone here who knows about setting up a Manual Mode on an Automatic transmission for my car? Any place on the internet that I can buy a kit of some...