[Scarebird]

Put in a functional windscreen washer setup on the 71. Of the dozen GM cars I had that used this wiper pump setup, I think maybe one actually worked correctly.

I used a below tank pump (self priming) from a 1975-79 Firebird supplied by this forum's sponsor. It works quite well.

This can also be used on a stock reservoir if a 9/16" hole is drilled in the bottom. A 9/16-12 nut with sealant mounts the pump. Power can be run to the pump, and the washer switch grounding feed is used to trigger operation. You may need to adapt hose size.