Tuning question

["Everett Barnes" <ebus@ebus.simplenet.com>]

Hello.  I have a tuning question as follows:

While adjusting the air/fuel mixture on my 1600, dual-carb stock engine, I
noticed that the right-hand side of the engine (cylinders 1 and 2) have much
less of a drop in rpms when you get near the point at which you want begin
backing off the air/fuel valve.

I also noticed that disconnecting the spark plug wires from cylinders 1 or 2
do not seem to affect the idle of the engine, while disconnecting 3 or 4
almost stalls the engine.

Everything else is equal - carb idle adjustment, carbs are synched, valves are
set correctly, etc..

Are these indicative of a problem or is this normal?  I seem to remember the
spark plug anomalies on my other vehicles and always wondered why that was the
case.

Any feedback is much appreciated.  I always like to have as much information as
possible.

Thanks,
Everett Barnes
ebus@ebus.simplenet.com
1955 Kombi / 1965 Squareback S
Transporter site: http://ebus.simplenet.com/Volkswagen