Three completely different pipes dynoed together with stock 71mm h2b cylinders. 
-VM38 carbs
-Cylinders raised 1.5mm
Note: meek=Denco

The jollymoto curve is like nothing I have seen versus ported cylinders. For a reason I cannot explain, they peak at a HIGHER rpm than with ALL my previous ported cylinders. 

We now have a 90 rwhp H2 WITHOUT any portwork done.