Hi guys!
Just some info that might help.
The rossi has an os #8 plug and is actually using a 10x6 prop.
And It is definitely running on the rich side. I haven't had a chance to look at it recently but am pretty sure there is no head shim. When I get the chance I will run it and tell you all what happens.

Also, should I stick with the plug it has in it or swap it out?
I know a couple have said to change props but what should I go to or should I just leave it alone for know?