Sounds good, depending on cams and level of head work you'll see that power, certainly 180bhp will be no issues. When I sold the car catcams had not long brought out some new cams designed to max out the profile you could run on hydraulic lifters, I guess it's these you're looking at? Couple of guys I knew on them were running ~185bhp with ITB's and pistons - so basically what you're looking at.
Probably want a later C2 head to start with nowadays as it has the bigger valves - I had to spend a **** ton on modding the older head with a QEP big valve job!