I had recently fitted a manual boost bleed valve and had the car runing sweet until i junod a tooth. Got it back and was runing fine until i fited and adaptor to make a round hks mushroom filter bolt to the airflow meter. Now the car sounds great when i let off but wen i nail it it starts to make boost n then al of a sudden hits fuel cut. It never done this before with the standard airbox on. Has any one ant ideas? I havnt fitted an uprated fuel pump yet before thats suggestd. But it was runing fine before fiting filter