Sound deadening, Carpet, and floor pan repair questions

I started with lizard skin and I dont think it did a damn thing, but I had the interior out.

I used Noico 80mm on top of the lizard skin.
I went inside doors over wheel wells etc. I would say I have 90% coverage. If I remember right I used 4 boxes in my 67 dart.
I even made a steel trunk divider and put the noico stuff on both sides of that.

It did quiet it down a bit but it's still loud.
I run tti x pipe with the dynomax super turbo. I have debated getting quieter mufflers (must be getting old)