Stock 318 heads question

I was wondering what’s the hp benefits to go with stock 318 heads (+stock valve train) and kb167 pistons + thin gasket compared to everything stock. With xe262 or xe274 cam, eddy intake & 500cfm, 3,55’, dual exhaust. Goal: dart fun street build. What would be the expected rwhp?

200-230 at the real wheels. Maybe.