Doing a scuff and shoot paint job on the race car. I have block sanded the original paint with 80 grit. My plan is to spray epoxy primer, then complete filler work and finally spray 2K primer prior to paint.

Question is should I apply the epoxy over block sanded paint with 80 grit? I was thinking that block sanding the 2K would take care of any scrathes showing through the epoxy.