I needed to figure out how and what. I wanted to keep the original floor brake pedal (and since I made the firewall flat, an ugly ol’ master cylinder hanging there on the firewall just wasn’t going to work, nor look good.). Time to put the thinking cap on, pull up a stool and do some studying… Back to the problem at hand…I knew I wanted a power booster on the brakes…big cars need help stopping…in my crazy way of thinking and building a car, I went to the junkyard, had them cut part of the X-frame/main frame section out of a ‘55 four door and I built a dummy master cylinder/booster mount out of sheet metal (not shown) for the new 7” Master Power booster/Corvette master cylinder. This photo is an “after” shot and that’s the stock Caddy pedal showing there. Having to NOT work on my back, under the car sure made building the dummy mount easy, and to be able to see exactly HOW it would work mounted to the frame…