Can't really say that I've ever read anything good about the H23, however...
If you're looking for a swap that's different and cheaper, yet gives you H22A/K-series power, you might want to look into a F22A.
Bisi has been doing some great things with the F-series motors!
1988 CRX Unibody, F22A full race: 9.81 @ 139mph
2006 Insight Unibody, F22A: 9.42 @ 147mph
F22A Video:
http://www.bisimoto.net/cms/index.ph...=44:news-video (9.60 pass, non-VTEC Bisimoto F22A, all motor)
Dyno Chart:
http://www.bisimoto.net/forum/viewtopic.php?f=30&t=135 (403whp / 342ft/lb torque @ 17psi: non-VTEC Bisimoto Turbo F22A)
BTW, Bisi has gotten 455+ HP out of a naturally aspirated F22A!!! And, I think he runs D-series trannys in his cars, if I'm not mistaken...