Is overspray on cylinder head ok?

Ive seen over spray on springs and rocker shafts of cars I've worked on that l have no
idea how long ago the last guy was in there before me/ and that paint ain't gonna go anywhere. No matter what size or brand that engine is. The only difference I've seen concerning "if it's a 318" or "if it's a 360" is that "if it's a 360" for some unknown reason ive seen and worked on more sludged up 360s than I have worked on sludged up 318s....
And Ive worked on more 318s than anything overall.