I have a HSW single dry nozzle kit with 70 degree nozzle. My spraying angle wasn't right so I bought a NOS 90 degree fan spray nozzle. My HSW jets wouldnt fit the nozzle so I drilled the nozzle out to fit the jets and I needed more like a 110 degree angle so I ground the wedge of the nozzle to give me more of and angle. Will these things cause any harm?

 

Nobody has modified their nozzles?

 

The problem with modifying the nozzle is when a nozzle is designed they flow them and make sure they have a good spray pattern and on a wet nozzle they mix correctly. I would connect it up and make sure the spray pattern is still good.

 

On a dry nozzle you should be fine since you are not trying to attomize fuel with the nozzle.
Dave