Update
Thanks for the info Chuck.
Apparently when the choke is engaged at cold startup there is a cut off that
occurs as the choke cam at the carb opens, shuts off (or opens up the vacuum
line reducing vacuum volume) killing vacuum to the EGR, a vac tube runs from
that choke cam to ? somewhere. There is a control signal taken via tubing and
vapor traps that controls a metering valve that is one brain of the vacuum to
the EGR. The smog Referee didn't know about the metering valve, I'd like to
plumb without one, don't have one.
Apparently the EGR's vacuum line could be tee'd into the vacuum advance line,
I know that vacuum is progressive as witnessed by the timimg advance.
I believe, the constant vacuum outlet on the left side of the intake manifold
connects to the anti run on valve. I am guessing that with ignition on the
power causes the valve to close, key off and the valve opens.
Anyone have the system properly plumbed and could avise where I'm off?
Rob
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