So I've ordered my carb kit and awaiting anxiously for it to arrive so I can tear into my car. In the meantime, I'm trying to plan out my ignition system. There is a lot of unclear information surrounding the timing.
First question: what part of a 1986 GTI CIS-E ignition is providing the timing advance? My understanding is that it's electronic, since the dizzy has a simple hall sender. I don't think there's a mechanical advance under there, but I'm not 100% sure.
What i'm wondering is if I buy the MSD Digital 6AL and 8910 tach adapter, then wire as follows, will the Ignition Control Module provide the spark advance curve, or is this a "locked out" setup?
MSD also sells the 6AL-2 Digital Programmable (6530) with the PC-programmable advance curve for locked-out dizzys. It's $100 more, so I'd prefer to avoid that expense if possible.