Master cylinder reinforcing plate

Thanks redfastback, I went back and looked through my photos after you posted and what do you know, not a single a-body with a reinforcing plate, lol. Any idea why only only B and E-bodies got the reinforcing plates, and why some have them and some don't? Thanks for the info BrianT, already have one and am waiting patiently to install it. I was hoping there was a way to cover up those ugly pockmarks on my firewall. Maybe I can fab something.

How about a V shaped master cylinder heat shield that sandwiches between the firewall and the adapter? You can hide the pockmarks and keep header heat from boiling your brake fluid. Shouldn't cause any brake push rod length issues if it's thin enough, i.e. aluminum sheet. If you really want to get fancy, you could have it anodized.