Smoothing firewall question

[79 Camaro]

Just a note on my 68 C10 fuse block. I did smooth mine. I used a Painless wiring kit. After I filled the hole, I made a 90 degree bracket to hold the new fuse block just far away from the firewall so I could route the wires going forward and back over the steering column and out near the start of the bell housing at the firewall. Just made a hole big enough for the wiring harness. That allowed me to route all the wiring along the frame rail front and back. You can't see any of the chassis wiring.