Pretty tall and expensive order for our BEW engines…anything over 200hp is a ton of money for very little gains and things will definitely break…stock internals need to be upgraded…not sure about the BHW swap by I’m sure someone will chime in
Does it sputter under load? When was the last time the fuel filter was changed? Hook up a vacuum pump with gauge, mitivac is what I use, actuator should start moving 3-4hng and stop at 18…another common problem is the wiring on the smart actuator does go bad.
Mine has visible wear on lobe one, unless you’ve seen a worn BEW cam lobe before, it might not look bad…and with 335k kms, if that’s the original cam it’ll need replacing soon….where abouts are you located?