I was wondering if anyone could give me some advise... I recently fitted a mfi rs turbo engine into my mk2 fiesta xr2 rep and since fitted all I had was fueling problems so I have decided to convert to efi! But I have been told to use a trigger wheel 36/1 on the crank pulley but I had a look threw ebay and they do different sizes and its says they only take certain ecu's. Would anyone know what size trigger wheel I need and if they would be ok to use with an ofab ecu? Thanks for any help! Matt