hi im running a 2.1 zvh on efi management with beige injectors. for everyday use it runs 13psi but when i try turning the boost up the car hates it pinking and missfireing. i believe they are standard fiesta beige which are only good for 220bhp i think my car has bigger bhp. i have been told there are two differant types of beige injectors? some that are capable of more than 220bhp?can anyone help me? or does anyone know if i can run any other injectors on efi management? i dont want to go cossie management i would be gratefull for any help cheers :cry: