3.2 engine throttle response issue:

[911hillclimber]

My 73T had a 3.2 engine installed in 1995, 50K miles old.

It is now around 130K miles in and untouched apart from the alternator about 10 years back and annual servicing.
Plug and cap replaced 2 years ago.

The engine runs really well, bit of blue smoke on start-up after dormant for a few weeks etc, nothing to worry about I think.

From cold to hot it runs and starts perfectly, lovely engine.

However...

Ever since I had it installed and wired up (by Bob Watson) the throttle action has been irritating, but, only taking the engine from 800 tick over to 'just' getting going.
If i really squeeze the throttle pedal super carefully the engine will come off tickover and rev as you would want, but if you drive the car normally on the road there is this sudden jerk and all is then well.

I feel this is when the throttle lever on the engine throttle body just comes off a micro switch on the side of the body. The switch position cannot be adjusted and is depressed (closed?) when at tick over by the throttle arm.

So:
What does this switch do and how do you set the throttle action to be as smooth as a normal car?

It is a real irritation when in traffic!

[911hillclimber]

Miss post!

[christaylorsound]

First thing to check would be the position and action of the shut throttle micro-switch. Make sure that it is working sit should and correctly adjusted. Chris.