Front ride high after A-arms reinstalation (911 from 1970)

[Tomy]

As I finished completely rear of my car I go in to the front
so I have such problem : I install on my A-arms Elephant Racing bearings as I take off all suspension from my car. I forget to make proper high on front suspension and looking on my car yesterday I see that front is too low. (after while I make measurements and I have 5 cm too low to original specification) I cant reach 5 cm with adjusting screw in Porsche Factory Manual procedure looks like this: (with struts in car )I need to go down with struts to the end -so need to jack car take off wheel take off adjusting screw as well as take off adjusting lever and than go down with A-arms as down as possible than put back adjusting lever in place in highest position and than screw in adjusting screw...correct ? or I need to take off all suspension and than change a-arms to crossmember angel?
At all it looks like adjustment is between 1,5 -2,5 cm probably (when we talking about adjustment screw alone)
So will be nice to have some advise as well as knowledge from your experiences like always.