Underdash water leak on 66 cuda

[mbrooks573]

Hello. I'm new here and am sorting out some problems with my 66 cuda I bought last weekend. On the drive back from Chicago, I can through some heavy rain and water was leaking from under the left corner under the dash. Couldn't really pull over and figure out where exactly it was coming from. Anyone had that happen? Maybe leak around the windshield seal? Thanks!

 

[Oklacarcollecto]

Possibly wiper pivots, build up of debris under the cowl or rust through from build up in the cowl.