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Discussion Starter · #1 ·
Ok, time for what I am sure is a stupid question. If running your timing as advanced as possible is the best for performance why is it that according to Bently the factory setting for 83-84 GTi is 6 BTC, but an 80 1.7L is 3 ATC. I was scratching my head about this last night wondering what VW was thinking, and why 9 degrees difference between models.
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