[HiFlow5 0]

Get better gears. 3.73's minimal for an auto, 4.10's if you want the most out of a gear. I had my 2.73's swapped out for 3.73's and what a difference, I almost wish I went with 4.10's.

Next, either a shift kit or a Lentech valve body. I think when I last checked it out, the valve body was going for about $400 shipped. It allows you to have full manual operation of your tranny, and eliminates the 1-D-1 shuffle. It also has an overdrive delete button so you can engage overdrive when you need it.

Then a stall converter. This will really make the car get up and go off the line. You can get different stall speeds depending on you application. You can also choose between lock up and non-lock up converters, all depends on what your looking for. The stock torque converter is way too tight, and doesn't allow for much performance.

And finally, a trans cooler! Cheap and very important to keeping the tranny cool under load, and especially important when you start putting more the stock power thought the AOD.

Hope this helps some!
-Craig