ogo

My ppp bugey is not running right! It ticks over and starts fine. Runs great up to 2.5k revs then starts to hesitate a bit but is still ok (just) But at 5k it seems to find another cylinder and realy takes of well although I am sure its firing on all 4 all of the time anyway.
On top of the turbo is the waste gate acutator operated by a vacuum device. Should you see the arm move on this device when you rev the engine? I disconnected the vacuum pipe, blocked the end off and the car seemed to run a lot better. (smoother)
Any one with any ideas please.