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> Wasn't his vac a twin vac chamber, too? If so, the vac retard makes a > difference at idle and must be done by the book or it will be wildly off. > His sig says '73 TA which is a twin carb Fastback. I presume it has the correct single vac distributor. BTW, the HC limit in the UK is 1200 ppm, and highest CO is 4%, but it doesn't apply to '73 models, which simply need to be reasonably smokeless. Aug '76 registered is the earliest they have to pass the CO and HC limits in the UK. Later models have tighter emissions. Dave. UK VW Type 3 & 4 Club http://www.hallvw.clara.co.uk/ ------ ------------------------------------------------ To unsubscribe, E-mail to: <type3-off@vwtype3.org> For more help, see http://vwtype3.org/list/