stang problem

what is your fuel pressure? what pump are you running? and when was the last time you changed the fuel filter? I think you need to step up to 24 pound injectors!

You definitely need to upgrade your injector size to 24#. Was your car professionally dyno tuned after you added all of the performance parts? I'm going to guess NO since any tuner worth his weight would have made you upgrade the injectors and fuel pump. You'll need 24# injectors, a fuel pressure regulator, and a 155 lph in-tank pump to keep up with the fuel consumption of that combo and make the car run right and idle right. Personally, I would just upgrade to a 255 lph in-tank so you won't have to change it for future mods. You'll need to find out what that73mm mAF is calibrated to as well, a new sample tube is around $30 from C&L if you have one of their units (? you seem unclear on that in yor sig). Have it dyno tuned and have a chip burned for it. Trust me, it will be a different car after you do. Good luck.