Will cranking my torsion bars 1/2-1 inch throw off my front end alignment alot? I just want it to sit level.

 

it will change the angles yes...but how much its hard to say. Most shops will check your alignment for free...its worth doing. I cranked mine 1.5' and did not need an alignment...but thats probably because it was off before the crank, just the other direction..

 

2 full turns got me a 1/2 inch...That sound about right??

 

Yep. Its usually one full turn = .2-.25 inches.