I decided to go with a firewall mounted brake booster. If anyone needs a frame mounted cpp kit I have mine on eBay and will sell cheap to a forum member. It's for disk/drum. Retails for 300 I'll take 200 shipped. I found a firewall mounted bracket for a 54 from performance online. False advertising! It's a universal bracket and doesn't "triangulate to steering column mount holes" as advertised. What a pain! I ended up exchanging it for a 47-53 which would be a great bracket for those years. It's way overbuilt. Problem is the dash is different in a 54 and the steering column mount holes in dash are positioned 3 inches forward so slice and dice time. The reason I decided to modify is because the firewall mounting position was the same and the brake lever is the correct length. Just need to make it "triangulate" to dash.