Shaved and Filled Cowl Vents? Aftermarket AC

you would need to put washers jets on the hood so you have access to the hose.
I plan to put them close to where they are now and use the hole where the original jets pass through the firewall into the cowl.
Fish the hose through the holes and connect to the jet, then seat the jet. Most are just a friction fit and just snap into a square hole like the ones pictured for a Jeep.

washer jet.JPG