see the thing is i have a sr20venosfreak ecu basicallly a calum and the chips are tuned for 72lb/z32 because thats what i have in the car or so i thought. the company i ordered the injectors from messed up and i ended up with delphi 95lb inj instead. I have the safc installed already and thats how i figured out to check the part number etc hed on the injector because no way on a 72lb program should i need to pull 21% up top just to get the a/f's to 10.8 .im fighting to get the right ones or a refund through paypal i guess we will see how that goes.