Rear tires are rubbing on fender!

Don't listen to them, I think it looks fine, but blocks are really not the right way to do it. The real problem is the shackle sway when cornering, and a stabilizer bar is
going to do little to stop that. A track-bar, such as what is run on solid axles attached with parallel arms or links, control this ........but swing in an arc. I know it well,
the rears on My Shelby Z's etc. shift side to side when the body rises & falls, so the only really good solution is a watts-style linkage control. It's either that, stiffen-up
what You've got per AJ, or make more room for/get different rollers........................
I am not familiar with this type of linkage control. I’ll do some research ($). Thanks for the advice.