Don, your car is looking great in the paint shop. It looks like that it is coming along.
Thank you for the information about your brakes and how it is installed. I went out and tried to compare mine with what yours looks like and see if I could install mine like yours. The bolt pattern on the booster does not match my firewall. I may have figured it out. Yours appears to be the original styled charger booster and mine is an aftermarket style that looks and mounts different.
When I bought my car it was missing all of this stuff and I never had anything to look at and compare. I took off the reinforcement plate and everything seems to bolt up and fit. I may call PST next week to find out their recommendations are. What I think that I will need to do is cut out my reinforcement plate or buy a different plate. May be it was designed to be a power brake conversion from manual brakes. I may need a manual brake reinforcement plat.
Here are some pictures of mine and other pictures of what I found.
Here is my power brake system.
This plate that I bought, it came without the 2 middle holes. I had to drill them out.
My firewall without the plate.
How my booster bracket fits without the reinforcement plate.
Inside under the dash everything seem like it would hook up great with the brake pedal.
Here is a picture I found on the internet of a manual brake reinforcement plate. This looks like what my brake mounting bracket was made for.