[aerohead]

Originally Posted by BamZipPow

Are you sure it's not oil blow by that's from the PCV valve? On my 1996 T-100 with the 3rzfe engine, I was pulling oil build up out of the throttle body and air plenum with my fingers in chunks. I built and installed a oil catch jar to minimize the oil build up...
Oil catch can/system... - Toyota Nation Forum : Toyota Car and Truck Forums

Bam,it's a good thing to keep in mind.Thanks!
So far,even at 345,000-miles the engine has no blow by,quite unlike the Dodge which has nothing but.
This residue had the stink of gasoline which had turned to varnish.
With the CVCC head,there's only a very lean mixture which makes it to the 'regular' intake valves and it doesn't do the fancy cleaning action so popular in recent gasoline advertizing.
There was no residue at all with the pre-combustion chamber manifold runners which are plumbed from a dedicated idle/low-speed carb throat.
Berryman's Carb/Choke cleaner took care of everything.