My opinion 1.5 compression numbers will only gain you 15 to 18 hp. You need 40 to 45. I would bump the compression to 10.5 with a bigger 254/264 ish cam .620/.600 ish lift with 108ish LSA.
Those two things should get you there. A step header 1 5/8 to 1 3/4 might be a great add on without giving up any bottom end. (or 1 7/8??) if you can afford CNC porting that will add even more.

I don't feel a 230 duration cam will get you there.

The better quench of a 0 deck piston should help some more for sure!