f22 bottum h23/h22 head would be great here. You would be pushing h22/23 hp but would be able to boost the shit outa like an F series (well, it kinda would be).
http://www.honda-tech.com/zerothread?id=776837
I really want to here about someone else doing this start to finish...so if you do decide to, please keep a niggie up to date