Hi
Distributor is out of the box, that means conservative setup. Think it's good enough for just run the engine. Optimizing time will be in July with the needed parts for my tester.
Actually the engine shaking is at thrust and part load (1mm on gas pedal).
We also found a major problem on the gas pedal mount ! It has a major design error. A friends gas pedal (1608) broke and mine (618) has a clearance of 2cm. Look at yours! Should not have a clearance, if it has, your throttels will not open complete