Some might argue these numbers sweetshee,hp is somewere around 33,35
As for as mods I have t5's,4 degree key,shaved head,lightened flywheel,and filter mods with holes in lid and it performs dam good and is very reliable,if you get into the porting I think your shortening the live of her.
By adding pipes you should get somewere around 7hp extra
And I think you explained yourself quite well