took my s2 for rolling road set up seemed to be running well.has fresh engine in.got a call to pick car up and was told car was only producing 80bhp and it was 3 teeth out on timing and a valve has been damaged.i thought if it was out that much it wouldnt run or would run real bad.can any one help because i had car looked over b4 hand and was told it was fine.i think they have fucked the car and.