Doing a large 242/248 HR LS1 2000 camaro in CLSD and he is running an injector I don't have info have.
Customer did some research and this is what he came up with
The are siemens injectors
04891574AD
Cross Reference Part numbers:
4891574AB, 68051554AA
Siemens - FI11351, FI11354
GM - 191446088
SMP - FJ601
Chrysler - 04891574AD
AC Delco - 217-2939
Coil Resistance: 12 Ohms (This high-impedance injector will work with all factory ECM/PCM injector drivers)
Gain: 0.75
Spray Pattern: Cone
Electrical Connector: USCAR (New-style V=EV6 / Oval / LS2)
Fitted with Viton upper and lower o-rings.
Static Flow Rate @ 43.5PSI (300kPa): 46.5 lb/hr = 5.86g/s = 478cc/min (+/-3%)
Static Flow Rate @ 58.0PSI (400kPa): 53.7 lb/hr = 6.77g/s = 552cc/min (+/-3%)
Dynamic Flow Rate 2.5ms PW @ 100Hz (400kPa): 11.42mg/pulse +/-4%