<VV> Rough idle and dying in drive (solved, sort of)

[Stephen Upham]

I pulled the crossover tube and checked it with the MityVac.   
Negative.  I pulled and checked the vacuum advance tube and choke  
control tube. Negative.  I checked the tube to the modulator on the  
PG. Negative. I checked the torque on the hold-down nuts on the  
carb.  The one to the head was fine, the one on the top of the carb  
took about 1/32 of a turn.  I set both at 11 ft. lbs.  I checked the  
air horn screws and they were a little loose taking about 1/64 of a  
turn each.  I was careful not to over tighten anything.  I then  
started the car and it was still running a little rough, but better.  
I stopped the car and sprayed carb cleaner into the idle circuit.  I  
started it and it ran a little better.  I then adjusted the advance  
from the 24 BTDC that it had been set at and changed it to 18 BTDC.   
It started to run better.  I then adjusted the carbs using the Unisyn  
( I had actually done this before all this started and it was running  
fine). It ran better still. I then adjusted the idle screws until it  
was at the optimum that I could get.  It starts and idles, although I  
can tell that it is high.  When I put it in drive, it runs fairly  
well, but not as smoothly as I would like.  The problem seems to be  
solved, at least at this rpm.  I'm afraid that if I reduce the rpm,  
the stalling may begin again.  I haven't been able to road test it  
and that will have to wait until tomorrow at the earliest.  I will  
let everyone know how it goes.

Thanks for your advise.

OH, BTW for those of you on Corvair Center - I know you were  
scratching your heads over the post title (Rough idle in drive)  -  
tired and in a hurry.

Stephen