First off with a blower combo, 19lb injectors is not really safe. If you are still going to run the stock cam, I would recommend 30lb injectors with 9psi of boost. You will need to recalibrate your FMU to 6:1 and possible drop your fuel pressure to about 38psi or so. You can get recal kits from Vortech (expensive) or from a place like Houston Performance (cheap). Its really easy to recalibrate. I actually wrote an install article for StangNet a while back for injectors and FMU recal.
I won't link to it though for obvious reasons.