So here's the deal.  I bought my '84 Westy about a month ago with a
blown headgasket (at least that's what they said).  Went ahead and tore
it down replaced heads etc.  Before doing the job my idle was steady but
it REALLY hesitated from a stop (like 4-5 seconds) before power kicked
in.  After putting on the heads my power problem is gone, but my idle
started to surge pretty bad shortly after it would start up.  After a
day of driving with it I got pissed and started to adjust the idle screw
(big flathead guy).  When I turned it 1 1/2 turns clockwise (is that
richer or leaner?) my idle settled down and seems to be fine.  My
question is, did I truly fix the problem, or did I just adjust one thing
to compensate for another problem?  Previous owners kept spotty records,
but the shop they took it to when they needed service is good.

Other clues:
I replaced the O2 sensor with the heads
replaced the thermostat (BTW has anyone ever seen a thermostat come out
in 2 pieces before... Mine did)
replaced all of the old nasty fraying vacuum hoses (any chance that by
fixing these it threw off the mixture?)
Valves are adjusted to .006 for the initial run in (had some soft
lifters after putting the heads on)
When I had it smogged before the new heads the tech adjusted the idle
(but I think it was just speed)

Any help would be greatly appreciated (I've checked the archives in
depth but have not yet found a clear enough answer).

-Nate
'84 Westy (lovin' it more every day)