How tight are the springs supposed to be compressed?
all the way compressed according to pacesetter.
I would highly recommend you have a shop install a flex joint after the header. My flange rusted out and snapped earlier this year, even with poly engine and trans mounts. It added precaution in the sense of do it right the first time.
My plan is to cut the ball flange off and weld a 3" v band clamp on. Full 3" downpipe to a 3" cutout FTW!
Paying someone to install parts and bragging about it being fast, is like watching someone bang your wife and being proud to raise their kids.