If you turn the stock torsion bar to lift the front will it mess any thing up
It shouldn't and adding torsion bar adjustment to accompany the lift would be a benefit you in the ling run. It's good to have all parts of the suspension work together. If not it could be a long road of headaches.
It all depends how much, to much could ruin ball joins and other suspension parts
You did not mention what car/ year etc you have so there is no way to answer you .