I am new to the site. And had a quick question. I have a 74 FLH and I just bought a mikuni hsr for it. And I would like to put the stock air cleaner back on and I saw that they sell adapters so you can use the cv air cleaner or a s&s air cleaner with the adaptor. So my question is if anyone knows if the bolt pattern is the same on either of the other air cleaner patterns.
Any help would be great.

 

no the shovel airfilter has a smaller center hole and bolt patern