I have built a TH400 with mech. modulator conv. The tranny has a shift kit, race clutches, sprague, 3200 conv, cooler, etc..... My question is reguarding the TV cable. The throw of the mech. modulator is shorter than that of a 2004R. I have therefore moved the tv cable stud towards the center of the throttle bracket to make it more "sensitive" to match the throw of this modulator i got. Can someone explain exactly what this TV cable does in a 400? I was told it only controls downshifts but then why would a 400 have a separate kickdown solenoid. Will the tv control fluid press??