<VV> "Ultimate" Carb synchronizing

[Larry Forman]

At 10:00 AM 9/11/2004 -0400, Russ Moorhouse wrote:
>Does anyone know off-hand, which book shows how to use a vacuum gauge with a
>tee connector to sync your carbs.  I'm having a senior moment.  I just
>looked at it last week and I purchased a tee and some vacuum hose and now I
>can't find the article anywhere.  I remember it also showed a picture of
>turn buckles, so you could adjust your engine speed.
>
>I've gone through the Corsa tech manual, HTKYCA, Bob Helt's book, and the
>Basic Corvair. I'm either overlooking it or I saw it somewhere else,
>possibly on-line.
>
>Russ Moorhouse

Hi Russ,
If you REALLY want to balance them the "ultimate" way, check out: 
http://www.corvair.org/chapters/chapter920/carb_balance.htm.  Ken 
Schrifftner has developed a wonderful way to balance Corvair carbs.  It 
does require purchasing a null-centered vacuum gauge by Dwyer, called a 
Magnahelic, for about $60.  However, once you have this tool you will find 
it provides improved balancing very quickly.  You only need to connect to 
the choke pull-off ports and can immediately check carb balance.  It takes 
maybe a minute to hook up the system to both ports.  One nice feature is 
the ability to leave the air cleaners on with this system, or you can take 
them off, it doesn't matter.  Also, you can check balance at any throttle 
position to check for balance at higher rpms.  I have found that connecting 
the left linkage arm at a position one or two revolutions from ideal at 
idle results in better high speed performance with minimal effect at 
idle.  This is different than described in the shop manual.  You can also 
adjust the right "Z" shaped arm for optimum balance at higher speeds.  This 
tool is sensitive enough to help identify the effect of slop in the carb 
linkage system.  Having tried nearly every other approach, this one is tops 
in my book.
-- Larry