from about '65 dual Solex 32PDSIT-2/3 carbs have an electromagnetic cut-off valve to stop the fuel leaking into the cylinders when stopped. It also stops dieseling. Dave. UK VW Type 3 & 4 Club http://www.hallvw.clara.co.uk/ ------ ------------------------------------------------------------------- Unsubscribe? mailto:type3-request@vwtype3.org, Subject: unsubscribe