[V8] V8 tune specs

[Mike Del Tergo]

Dumb question dujour. Just replaced a Tach that dropping out more than in the last few months.  I'm trying to get an exact RPM reading for the V to make sure the new tach is in synch.  Usually go to the coil with the DMM.  (I lent out my timing light)With the 'twin' ignitions do I have to take a "4" cyl reading?  On "8" it is reading way low, but on the "4" setting it seems right in spec.(I never had to do this on this type of Audi coil, I assume one of the 2 screw leads under the top cover is OK for this purpose?)thxMike
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