View single post by vnavaret
 Posted: 06-26-2024 12:59 am
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vnavaret



Joined: 04-07-2022
Location: Oregon USA
Posts: 54
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 That particular vacuum capsule can be moved to the other side of the distributor if you wish. That would convert it to a vacuum retard. Unscrew the knurled nut, remove the dizzy cap, rotor, and breaker plate. You can unhook the vacuum capsule, and reinstall it on the opposite side of the dizzy, and reassemble. Voila, a vacuum retard.

Installing it with the advance increases your highway fuel economy by about 3-5%, which is why most cars use an advance. And yes, the retard is for emissions only.
If you do use it as an advance, you will need to connect the vacuum line to a vacuum port on the top of the ZS carb, you cannot use the port that was formerly used for the retard. Off hand, I don't remember if there is an advance port on the carbs or not.
Vance