My 2100 Autolite carb appears to only have a Spark (S) vacuum port.
A Spark CTO switch routes vacuum from the S port to the distributor advance.
But I do not appear to have a Spark CTO switch anywhere on the intake manifold.
Soooo, my distributor advance is hooked up directly to the S Port.
My 2100 Autolite carb does not have a EGR (E) vacuum port.
My EGR CTO switch directs vacuum from the E Port to the EGR valve.
Again, there is no E Port on my carb.
So the EGR valve is hooked up directly to manifold vacuum.
How my jeep runs seemingly fine is a mystery to me.
79-FSJ-360_Vacuum.jpg
A Spark CTO switch routes vacuum from the S port to the distributor advance.
But I do not appear to have a Spark CTO switch anywhere on the intake manifold.
Soooo, my distributor advance is hooked up directly to the S Port.
My 2100 Autolite carb does not have a EGR (E) vacuum port.
My EGR CTO switch directs vacuum from the E Port to the EGR valve.
Again, there is no E Port on my carb.
So the EGR valve is hooked up directly to manifold vacuum.
How my jeep runs seemingly fine is a mystery to me.
79-FSJ-360_Vacuum.jpg
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