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Moderator
Join Date: Apr 2000
Location: Auckland, New Zealand
Posts: 5,111
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To followup on Matt's comment - the MSD worked fine with his tach but my 69 needed the tach adaptor (much to my chagrin).
As best as I can determine, if the tach originally ran from the coil (ie, car didn't have a CD unit - like my 69 or a 914) then you need the adaptor. If you have a CD unit already (eg, all other 911s since 1969 except the T in 69), then you shouldn't need the adaptor.
Clear? I thought not!
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1975 911S (in bits)
1969 911T (goes, but need fettling)
1973 BMW 2002tii (in bits, now with turbo)
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