first your pipes may have more back pressure with any baffle
in them , second we can not be sure what jets are in your bike
pilots or mains?

I recently tuned a speedmaster that had me confused until
I dicovered that it had 48 pilots ( way to big )
and the mains were way to small.
but after the trial and error and finding what was really in
the bike we got it set good and the owner is happy.
ahh what fun we all had at the GA rally.

I do not know what affect your pipes are having so I have to
guess until I know what you have.

If you take it to some one with a motorcycle dyno they
will get it done right and you will be happy with the performance.
other wise its the butt dyno , plug read and trial and error
with the jets until it is right.

does this make any sence or am I rambling again


Pete