like chuck said with 61x cylinders, raising exhaust port a couple of degrees works well
yamanube your fine with what your offering, just this little bit of porting work will go a long way in making power with your typical add on mods like b-pipe, ada head, rejetting and or better carb system
yamanube your fine with what your offering, just this little bit of porting work will go a long way in making power with your typical add on mods like b-pipe, ada head, rejetting and or better carb system