Well, lucky me, it looks like it's the windshield gasket (tiny drop) and ALSO the cowl (big time). I had the car outside in the ran for a couple of days and there's water under the dash both on the driver's and passenger's sides. I have an original A/C unit in there, so it's a little hard to easily look under the dash, but all signs point to a rusted cowl.
What's everyone's opinions on this? If I garage the thing and take it out only in dry weather, do I care about a rusted cowl. (I think I do.) Anyone have a walk-through of replacing it? Or a good shop that can do it for not a crazy amount of money?
Thanks @2nd 66
for the tip.