[bluetoy]

A MAF only measures airflow. It has nothing to do with the injector size. The reason people get Recal MAFS is to "trick" the ECU into giving the proper amount of fuel for the new injector size. You are currently running a stock MAF and 42# injectors. The ECU has been adjusted to compensate for the injector size. I realize that your car is not running 100% but it is still running. I fear that running 42# injectors with no tuneing would just choke the engine off.

So really what I am trying to say is that any MAF that can flow enough air without hitting the 5v will work 100% with a tune. MAF is just that Mass Air Flow. Has nothing to do with injectors.

Hope that helps a little. If you E-mail SCT they will tell you which MAF is best to use and they will also tell you that what injector size it is cal. for doesn't matter.