Setting Ignition Timing Curves
|
When vacuum-advance canisters were first introduced, they were calibrated to the engine. This GM canister reads 357/20—the 357 is the last three digits of the unit’s part number, and the 20 refers to the total crankshaft degrees of vacuum advance. Today’s replacement canisters all feature nearly the same advance total and do not display this numbering system. View Related Article
|
|