We just had a class held at our facility this past weekend. It was put on by EFI University. They have entry level classes to full advanced. Its a great way to get the fundamentals of tuning and progress from there.
Here is some more info for you. http://www.efi101.com/
This month they are having something in Hillburn, NY at (Xenocron Tuning Solutions) February 20 - February 21