Took a look at the stock spec for the bike ... seems my numbers are running below that. And the 12-ish AFR suggests that I need more air or less fuel. Stage 1 SE is rated @ 160 CFM, which supports over 5,500 RPM @ 96 inches. So, even down around 3,500 needing more air than the SE Stage 1, doesn't seem to really be an issue.
What does seem to be an issue is either getting the air sucked into the cylinder for a good VE, keeping it in the cylinder or having less fuel to give a better AFR. Of course, I'm just talking out my backside like I really know this stuff ... well, at least that's my newbie stab at trying to understand what is going on.
As you can see, I could use some help in figuring this one out. I figure that the True Duals aren't optimal for scavenging ... but I dig 'em, so I'd like to make 'em work best as possible for some low/mid throttle.