Where did I read about the massive development work the Penske team did on a Ferrari?

It must have been in the Mike Argetsinger book on Mark Donohue. I know the story was quite detailed and showed that there are minds out there who can improve on the product from Maranello.

And I just noticed I put 'Lakeside' instead of 'Surfers Paradise,' I'll definitely have to go back and fix that!