I just put an AOD in my dad's '67 galaxie. The advice you've gotten so far is great, tv cable setting is critical, in my case I wanted about 1/8" more pulled out than slack. Be sure before you drive the car you have no slack at least (and do this after you have adjusted your idle speed). I bought a lentech valve body and non-lockup converter (lentech recommended) and have been real satisfied with them.
Ford Tranny Talk Had This Thread.
I used the Lokar TV cable setup but that didn't have the correct geometry with the Holley Carb.
Then from Sonnax.com get the following parts;
The Sonnax Holley lever is p/n: AS2-02K
The TV cable corrector is p/n: AS1-01K
Once you have those parts in place you can use wide open throttle as your baseline for the TV cable, you may want to go a little tighter than that even.
You can order the sonnax parts online here
Also my AOD was an '85 from a T-bird and it did not require shortening the drive shaft at all. All I did for mount was reverse the factory mount, I have no idea on yours. Most likely yours will have to move back an inch or two.
Good luck, Chuck