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Thanks for your help converting B21A to B21E Electronic Ignition

I realised that I actually have a photocopy made years ago, of Volvo's Service Manual (Wiring Diagrams) 240 1975, 1976, amongst my Volvo records. Looks like a piece of cake. I really want to explore Vacuum Advance Curves between the B21E JGU4 Distributor and the B21A JFU4 Distributor. My goal would be to change the Centrifugal Weights and Vacuum Advance, if possible, from the B21A JFU4 Distributor to the B21E JGU4 Distributor and have the reliability of an electronic ignition.







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