911 rear spring/body height/stance

[ericsinaus]

I am about to reset the rear end of my 1980 911 SC Targa.
Im submitting this as a new topic.
Can anyone tell me what the correct stance is of the rear end.
At present when I put a spirit level on the door step sill it shows the rear end lower than the front. (the bubble is slightly forwar
Thanksd)
Should the vehicle across the step sill be level

Thanks