F7 Sno Pro comes with 22/41 gears and a 72 pitch chain. I am trying to replace the top spocket with a 19. The AC performance manual and D&D say a 72 chain will work. i put them all in and i have too much slop to clean up with the tensioner. So i went and bought a 70 chain, and that is to tight to even fit on the shafts. How can I make this gear combo work? Will I have to go to a 20/41 to make it work? Help me please, I think I am overlooking something.