hello I have a 1995 coupe 2,0L 8V ABK. despite all the advices I did not do anything I started screwing at the performance and the end of the song, for now, is already standing up. but why? have given the car a fan bender a larger throttle flap built in and the petrol pressure on 4bar. but still keep the org. camshaft. now he pulls through the bottom of it completely but above it goes out to him and at 180km/h is close. does anyone know what that might be?