You could try replacing the exhaust cam with an intake cam.
Fastdude, one of our Swedish members, has done it on his bike, he said 76hp.


Steelheart- '03 Speedmaster Black/Yellow The Hayabusa Killa 16" Shorties/140 mains/Airbox drilled Procom CDI "There is no cure for Celibacy. But we can treat the symptoms."