So i havent figured out why transmmision wants to start out in 3rd gear 1970 torque flight 727 doses good on take off if maunaly shift in to low gear and shifts normal otherwise .is there a fix for this without pulling trans i do have a kick down cable thought it was adjusted tight enough ?

perhaps the shifter or the arm is misaligned on the transmission?
if the arm is wallowed out, perhaps it is moving into 2nd instead of drive and it seems like 3rd?

just put it in acully have floor shifter disconnected just moveing cable by hand thanks for thought though i have no history of trans other than fluid was clean and i put new filter ect

Either a stuck 2/3 shift valve or a governor problem.

Governor pressure can be checked with a gauge hooked to the governor test port in the tailhousing, shouldn't be over 2 psi with the shifter in Drive and the rear wheels immobile.

It might have a manual valve body in it.

I'd remove the valve body and inspect it.
While it is out you can air pressure check the clutch packs and servos.

I rebuilt a trans for a kid, and it had two plates installed in the valve body. I think stock and an aftermarket shift kit plate. That trans was all messed up inside too.