On the NG (2309cc with KE-3 jetronic??) the timing is totally ECU controlled. All you do is set crank and cam to TDC then fit the dizzy so the scribe line on the hall sendor wheel lines up exactly with the corresponding mark on the dizzy body. The ECU does the rest. If you are having to adjust the dizzy to get it running the dizzy is wrong mate. KV no good at that's just K-Jet, not KE-3.
May be difficult to get one but you really could do with one!! The retry your idle issues. Again, the idle is ECU controlled and so needs basic setting. Best way is with VAG com on, fuse in top of fuel pump relay (this initiates basic settings) then adjust idle and fuel by the measured block values on VAG com. If you try adjusting the idle/fuelling without doing this the ECU gets confused and will fight you! Make sure also that the idle switch on the throttle valve is working. If it is not then the idle will stay high and the revs will take a while to drop when you nrelease the throttle as it needs to shut fuel supply and heavily retard the timing - again, possibly linked dizzy fault!!!
Hope this helps....
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