manual valve body ??? I think

I picked a 73 340 Charger last year and have been playing with it. It has a 727. Now it does have a kickdown but will not kickdown no matter what I do to adjust the linkage. I know if it is not adjusted right it will still kickdown either early or late. I am wondering now if it is a manul valve body, and the PO didn't remove the linkage...or does it still need line pressure even though it is a manual valve body.
Is there anyway to check without dropping the pan?
I really don't want to fry the tranny LOL
AL