accelerator pump issues

well i have a chiltons manual made specificaly for the 75 year the thing is that it says to put it in the middle slot and the rod should measure 2.22 in...wtf would 2.22 measure out to in fractions lol. but it also dont make any sence because the rocker plate goes in the opposite direction that the pump rod needs to go to activate it. meaning that while looking at the engine from the front the rocker plate rotates ---> while in order to activate the pump it needs to pull the rod <---...its all very confusing really...and yea Lex its a pain in the butt. however it only hesitates at low speeds.
There is a spring inside the 1945 carb that pushes the acc. pump down. The linkage doesn't do the pushing.....it pulls the acc pump back to it's starting point. Changing the slot or the length of the linkage changes the pump stroke and therefor the amount of fuel discharged from the outlet nozzle. Look down the throat of the carb and move the linkage. Fuel should squirt from the nozzle from the very first movement of the linkage. If not, the engine will hestate and/or die. If there is no fuel discharged or it just dribbles a little, you'll need to take the carb apart and clean/repair/replace as necessary to get it working again.