Volvo RWD 140-160 Forum

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distributor 140-160 1971

Does vacuum advance really help? I have a B20A dizzy in my K-Jet car & it never helped my MPG or enabled me to lean it out. In the past I have tried to add vacuum advance to my twin HS6 economy car & I couldn't get any benefit from that either.

I think the reason B20B's & E's don't have vacuum advance from the factory is they don't actually need it.






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New distributor [140-160][1971]
posted by  Yanacsek  on Thu Dec 11 07:13 CST 2003 >


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