I've been looking at that engine as well.
So far this is what I understand:
- Cheap to get ahold of.
- Usually rebuild not required, most of the time just need to check the lash on the scissor gears.
- Very narrow DOHC, should easily fit.
- More aftermarket support overseas, especially Australia.
- Only automatics available stock, but there are adapter kits out there.
- Built NAs can rev to 10k RPMs (so I've heard)
- Flat plane crank (mmmm Ferrari sound)
- Has been done in a 280zx
- Aftermarket barely catching up, apparently stock cams are very limiting, and companies are barely starting to make performance ones.
Hmm... that's all I can think of now.
Mario