The way the top cut transitions into the chamber is is a little different. I personally wouldn't worry about it if I was going to spec a cam for the combination. The low lift exhaust flow would make scavenging a little easier but could easily be made up for.
It wouldn't take much to make it match the RPM head there.
The Sidewinder could easily go bigger than I have done here but these are at a level I want for the street engine they go with.
Keith