Not sure if you guys have ever seen these, but they're old VW service videos that really explain some of the dynamics of tuning well. Helped me visualize things at least.
Part 1
https://www.youtube.com/watch?v=EpH7VftH3_I
Part 2 (really helpful IMO)
https://www.youtube.com/watch?v=vQ9ccGXtZL0
Theres others posted by the same user; things like carbs, etc.
-George
Full Version: Not as cool as T.C.'s video
Nice Find George! 
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