Kick down has 1/2 travel before lever engages valve

Car Just out of restoration. Trans had new seals filter etc. rest was fine but refresh was 4 years ago. You can adjust to specks but shifts at 10,12,14. No pressure. Will shift right after lever is halfway but bottoms out at 1/3 throttle. Lever can’t move past full throw. Thus locks up throttle. The spool valve probably not coming out to meet the mechanism actuated. Stock motor and trans Appears to be original. Haven’t ran numbers yet but looks period correct. Can’t figure out why it’s not having too much pressure as the valve seems already half way down