I recommend these Injectors for 400-500 whp Boosted Setups
Flow Rate - CC's: 750 CC's / MIN @ 43.5 PSI
Flow Rate - LB's: 71 LBS / HR @ 43.5 PSI
Resistance: 12.5 Ohms @ 68 F
Voltage: 8-15 Volts, nominal 13.5 Volts
Amperage: 1.0 Amps
Pressure: Min 30 PSIG / Max 70 PSIG