Idle Speed Microswitch/Timing

["pbartusek" <pbmain@xxxx>]

Thanks to everyone who replied to my recent posts regarding my issues 
that I was having after doing a 'tune up'. I'm still having the 
issues and hunting for a possible vacuum leak. However, does the 
following scenario ring a bell to anyone as to where my problem may 
be stemming from?

If I keep my idle speed microswitch pressed down, the timing is right 
in line with where it needs to be when I check it with my timing 
light. If I rev up the engine and keep the switch pressed down, the 
timing still looks about right...even though the car wants to die out 
if I let it idle at the standard 750rpm. 

However, if I *don't* push down on the idle switch, the timing is way 
off the charts, almost directly at the "12 o clock" position. If I 
rev up the engine, it gets worse and goes higher..not to mention the 
engine sounds like garbage... 

I've been doing the 'propane vacuum leak' testing in order to find 
the source of the leak in key areas, and nothing has turned up 
yet... If anyone has some thoughts to why this may be occuring, I'd 
appreciate any input. I'm not very familiar with how the system 
operates (but quickly learning..the hard way!)...but I was hoping 
this might help point me in the direction of what might be at fault, 
what may be leaking, etc...

Again, the car ran quite well until I did a tuneup and it went south 
after that and wouldn't accellerate at all. It idled ok...but after 
the car sat over the winter months in the garage, now it doesn't even 
want to idle...it just wants to die. I know I must have done 
something, but keep looking, checking, searching, comparing, and 
haven't come across anything...either I did something that I can't 
locate, something was failing while I was doing my tuneup, or 
something was on the edge of failing and I helped it along by 
disturbing it during my procedures. 

Thanks in advance!
Pete