As for the link to corky bells turbocharging it is well excepted that the book while being a good read with alot of good ideas is dated. That book was around before the rear mounts really were. Turbo tech has also changed alot since that thing was written. The things the can get these new hi tech turbo's doing vs the old ones makes some of the things he stated not right.

I can't think of any better books on the subject currently out there though.