M-body road trip success

Not even. This troll's angry because I've crushed his eBay fraud
empire and his Google Groups spam machine. Look at the IPs on each
message.

You can't, considering the '86 LA didn't even HAVE a vac advance (or
advance of any kind) on the distrubtor on the "P" code vehicles.
There's nothing in that but a shaft, a reluctor and a pickup...period.
Charlie Noodles knows zip about ANYTHING Chrysler, being a confirmed
GM stooge.

My EFCS II box works perfectly. Noodles probably has never seen one.
What I did find out (and the shop manual casually neglects to say) is
that during warmup before the O² sensor starts putting out signal
voltage, manifold vacuum IS applied to the transducer when the
throttle is closed (meaning the throttle switch is grounded), thus
raising the idle a bit until the system goes into closed loop. Once
that happens, the unit cancels any vacuum-caused advance as long as it
sees a ground from the carburetor switch. You can see this on a
'scope by looking at the duty cycle of the square wave feeding the
feedback main jet solenoid. As the O² sensor starts generating, the
pulse width to the main jet shortens in proportion, and once that
happens, idle vacuum advance is cut off, and returns once the
carburetor switch loses its ground.

You know this system, so I'm not going to tell Noodles where it's at.
Let him wallow in his own ignorance.