I would say as of now you are putting out 40hp maybe little more, but not much. To get 80-90hp maybe a full drag port, stroker, with big alky carbs. And maybe than some.
Ported Cylinders
Ported reed cages
K&N + Outerwear
Bored .40 over
Head milled .30
Plus 4 timing
Fmf fattys
Boysen reeds
Trinity 2:1 35PWK
I run 180main DEK needle second clip 48piolet. My bike seems to run leaner than most people on here but since your cylinders are not ported I would think that would get you close. Try on the third clip firsth though.