Thanks for the replies. I didn't find any leaks and my fluid level was good. If it's the master cylinder I am SOL until Monday (nothing open in Vermont on Sunday.)

Don't worry Bob, I have a lot a family and friends in Saratoga so I won't get away with a hit and run. I used to own a 2nd gen T/A and a 4th gen Firehawk so I'll have to hit a 3rd gen car since I have never owned one of those. Which bird will be yours? If I make it, look for a non-show car cameo ivory '67 400 ragtop. She may not be show quality, but she's numbers matching and a nice driver (at least when the brakes work!)