First question: what's the budget? Second question: are you willing to redo the short block?

At .110 in the hole with open chamber heads the compression will be extremely low. As mentioned, stroke it if it fits in your budget. I would forget about the 915 heads. Open chamber really kills it and without any additional work 2.02 valves will gain you almost nothing.

A good set of heads and a cam change will get you close to your HP goal, but a stroker motor will give a broad flat torque curve. For a 100% street machine, torque is King.