what is bolt hole pattern for a cv40 carb each angle is different' and also location of the float bole hole?

 

Did you mean the air cleaner backplate bolt pattern? I am not sure what you mean by the float bowl hole though.

 

Bowl Vent, Top Left in Picture...Maybe
Very Cryptic original post
Edit; Good way for Mfg. to keep us from mixing and matching Air Cleaners!!! Yet the S&S, which takes a pretty much proprietary Air Cleaner, can use an external Vent if Desired!! Odd What?

 

I have an S&S air cleaner on my CV40, took a bit of drilling and filing but I ended up with (to me) the best of both worlds.