In a sense Todd beat me to it...
For anyone that loves the V7 platform, but is looking toward the V9 solely for the increased power output, I can unequivocally recommend Todd's drop in
820 big bore kit or the
4V-820 big bore/head replacement kit.
FWIW - The 820 BBK cylinders that Todd is offering are the same bore as those that Guzzi is putting in the V9. The additional displacement on the V9s comes from a stroker crank on these bikes.
It's notable that
@Gruzzer, after comparing the 820 BBK side by side with Todd's upgraded V9, still felt that the V7 820 BBK put out more power. This doesn't surprise me, though. The components in Todd's kits are all precision machined, and the dyno charts that Todd posted here previously showed that we could expect as much.
I opted for the full 4V-820 kit. To encourage those on the fence, rather than to brag... This makes the bike into the bike that you
really wanted. It's still the V7 that you fell in love with - but it's transformed the bike into the bike that you imagined it might be!