Just curious what the difference between the MM lobes and the XX lobes? I read the catalog descriptions, but looking for more detailed information. Design and actual intended useage difference as well as difference in spring requirements and maintenance. When i saw this post, i immediately thought i run this lobe family in my rb 505, but when i went to confirm, i saw it is the XX lobes. So curious about that info.
If you're asking me about the lobe differences, I'm probably not the one to ask. It does appear the intake lobe is an MM and the exhaust is an XX lobe.
I measured the cam and it is what it's supposed to be. (that's been a problem for me with some other brands lately)
