Vacuum advance canister?
I am looking for the ac delco B28 vacuum canister, but discovered they are discontinued. Is the Autozone DV-1810 the same type of canister? I need a B28 style. Apparantly, they operate on 6-8" of vacuum, is this correct? Anybody know how much timing the B28 will add with 8" of vacuum it idle, (800rpm-in gear)?