The last time I went to the junkyard I picked up a pair of nozzles off a late model car, the "fluidic" type with a slot instead of plain round holes. I just tested them and they seem to work great on my 77's washer system, producing a good distribution of droplets over a wide area instead of solid streams. I just have to secure them to the hood, but that shouldn't be too tough. It's a nice 'High Tech Retrofit' and costs next to nothing!