I have a 70mm cobra MAF housing with the MAF sensor attached and I need to know if it is calibrated for 19lbs or 24 lbs injectors. The guy i bought this from gave me two sensors and told me that the one that is currently on it is for 19 lb and the one that is by itself is calibrated for 24 lb. Can the sensor alone be calibrated for the injectors, I thought it had something to do with the housing??? What I am asking is can I simply switch the sensor over to change the injector calibration, or was he bsing me????