The if it doesn't say you can, you can't rule is hard and fast in IT.

You have the option of CIS-E and a 1780cc motor, or CIS-E Motronic and the 2 liter for an ITA VW. FWIW, I don't beleive there is an outright power advantage to the electronic fuel injection over the CIS-E, but I will be building one over the winter to find out for sure.

Yes in ITB, you can run all of the digi hardware and control it with any ecu you like - but you still have to pull all the air through the AFM, you don't have to use that signal for anything, but the air has to pass through a stock AFM.

For ITA I would go small bumper 1.8 CIS-E. The 1.8 head will flow a bit better on the top end than the 2.0 head. The weight advantage is worth more than the 2.0 in a season worth of racing consumables. Heck, I have thought at times of putting a 16v in my car and seeing how it runs in ITA - but I have a lot of fun with ITB right now.

Where are you located? Few ITB cars sounds like west coast...