Dripping Water From Lower Vent
 

When I bought my 94 Z28 AC was not working. Just had it repaired. Today AC was running and I noticed water dripping from the lower vent by my feet. Is this caused by a blockage of the AC water drain? Where would I find this drain to clear? Is it at the bottom of the AC box on the firewall?

Not sure where the drain is, but yes I'd assume the drain is clogged. A blow gun or a hanger will work to clear it.

could be just condensate. moisture building because its nice and cold now. if the vents are warmer than the a/c condensate can build up in vents.

that happend to my moms old 99 grand prix, had a nice pool on the passenger side floor, sure enough the drain was clogged, stuck a metal hanger up the tub from under the car and got a face full lol