MuzMech

I am installing some 660cc injectors into my V3 WRX which is dedicated track car. Have an Apexi PowerFC to run them which am getting tuned and Dyno'd tomorrow but these are low impedance injectors so have come with a resistor pack which needs installing. Am just wondering if the resistors have a certain polarity/direction they need to be wired in and if anyone knows which wires they need to be fitted to would help. Cheers