Lagging when shifting?? (727 auto, w/ full manual valve body)

it probably doesn't have any of the other parts either.

If I knew more about the trans. I'd put it in here. The guy I bought the car from wasn't very forthcoming with the info. I know what he told me, and a full to the brim 5-gallon bucket full of receipts to go off of.

It can't have the full manual valve body, as it seems to shift when left in drive. I know the governor went bad a year or two ago, maybe that went bad again.... Idk. I'm going to try for the kickdown linkage today, and see what happens.