It won't shift into OD because the AOD will not ever shift into OD at WOT when it is stock.
A 2400 converter will seem almost stock.
Either leave the stock one in or get a 3000.
I had an AOD '90 GT and 3.73's and a good tire was enough to run 14.60's-70's
Your AOD also will not hold out to 5 grand w/ out doing a 1-d-1 shift.
Hold 1st til you want it to shift...then go to "d"
Go back to 1 to hold second til you want to shift.
Then go back to "d" again and leave it there.
You should run about 14.30-14.50
Shifting like that w/ converter(3000)
shift kit, and 4.10's w/ tires.
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4.10's,long tubes & 75 shot...Goes 12.50's
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