Did you ever complete your turbo installation? And if not, what problems convinced you not to go forward? I'm in the middle of an attempt to turbo a 97 RAV4 AT/AWD, and although I've figured out many issues, I'm having serious doubts now about this really working well. Already spent lots of money aquiring the proper parts, and learned a lot. But now that I'm trying to figure out the ignition retard-on-boost situation, I've realized that the 97 has very little potential computer control because it still uses a distributor (fixed mechanical advance, etc.). Anyhow, I'd value your experience/comments.
All the best,