Clecoed all firewall supports and engine mounts to firewall. Match drilled all #30 and #40 holes from the front side of the firewall. Match drilled 1/4" holes in backing plates. Drilled nutplate holes on middle and right center angles. Countersunk all parts to firewall. Messed up and countersunk top L spacer plate. Manufactured new one. Bent firewall 8 degrees forward. Deburred all firewall holes. Dimpled #40 firewall holes. Primed aluminum parts. Dimpled and countersunk all #30 firewall holes.
