well just had a question and familiar with tuning but never did a big turbo swap till now

1.) replaced my throttle body shaft seals due to leaks, and I cleaned off the black spray on the back of it, car is having a hard time idling

so I know I need to buy some of that spray something call meblydum or whatever

and how do you set back you throttle cable braceket to the right position? the Tps I set back to 13.33% which is good but I dont think its right. Do I follow this on my tune for engine temp vs idle?

2.) with a bigger turbo do you have to rescale your injectors for ltft on idle and while cruising due to more air coming in the motor? Or will it be fine? I know I have to retune the afr for the turbo but just curious.

Thanks