'72 Swinger water leak

I have a '72 Dart Swinger that has an intermittent water leak right in front of the passenger side door at the kick panel. I know all about the wiper arm pivot seals and have replaced those. The cowling drains are clear and the windshield gasket has been replaced. I know the A-bodies are famous for having water leaks, but does anyone have any suggestions on fixing it? Thanks for any help.