Tuning sequence for a W5AM is ridiculously simple.
Connect manometer and Guzzidiag, (Or whatever diagnostic tooling you use.)
After you have set the valve lash to 4thou inlet and 6thou exhaust warm the engine up to >60*C and close both air bleeds.
Hold the throttle open so the engine runs at 3,500-4,000 rpm and using the screw on the bell crank on the LH throttlebody balance the manifold depression at 'High Speed'.
Once done let the throttle snap shut. Kill the engine with the kill switch and recalibrate the TPS and clear the self learning parameters, (The acquired fuel trims. This is only really necessary if running a closed loop map but just do it anyway.).
Restart the motor and whichever side has the higher manifold depression? Open the air bleed on that throttlebody to restore equilibrium.
Thats it! That is all there is to tuning a W5AM Guzzi, (Bellagio excepted.). Do NOT try and change the idle speed by messing with the throttle stop screw to close the butterflies of the TB's. The idle speed is hard coded into the map in the ECU and is controlled by an air over idle system with a mechanical air bleed called a stepper motor that stabilises the idle at its 'Target' by adding or subtracting air to influence the idle speed. This is also controlled by the ECU. The 'Target Idle' is adjustable but only within the map using a program like Tunerpro to manipulate it once it has been downloaded from the ECU. Once modified the new map has to be re-uploaded to the ECU. This shouldn't need doing if the bike is mechanically sound and tuned properly.
There are few bikes easier to tune than a W5AM Guzzi. It probably takes about the same time as it took me to write this message.