Car missing at 70-75mph

  1. #1
    As per title, car seems to be missing, lumpy, slightly juddering at 70-75mph

    Just had head gasket done, coilpack, cambelt etc.

    Any ideas???
  2. #2
    Any help please
  3. #3
    changed the plugs?
  4. #4
    have you booted? you should drive steady after a head gasket change so it settles.
  5. #5
    not done the plugs and no i've not thrashed it lol.