2003 Crown Vic police interceptor.

I have a 2003 cron vic police interceptor that i have quite a few aftermarket bolt on parts installed on. Including dual exhaust with and X pipe and no cats. Under drive pullies, full K&N cold air intake kit, BBK 75 mm throttle body, 75 mm throttle body spacer, BBK 75 mm intake air neck, accel super coils, fitch fuel catalysts, Nitrous express Mainline EFI wet shot system (50 shot), and EBC Slotted - Dimpled front and rear disc brakes. I am hoping somone knows what size injectors come factory in this engine. Weather or not i should to increase the size of them. And if so what size should i go with. If nyone knows it would be a big help. Thanks.

they are factory 19lb ..no need for bigger unless you plan to go bigger cams or what not..next step is 24lb