When the engine is running the V should be considered to be ~14.4V. 14.4/6ohm = 2.4A
This is true, it is also worth considering your PW and duty, this will probably be reduced by using two injectors, so the 2A will not be constant if you have a duty cycle of 75% The current draw will still be 2.4A but the heating effect will be 2.4 * 0.75 = 1.8A or 14.4*1.8 = 25.92W each channel.
If I remember correctly you have a 5cylinder engine which means you'd have 129.6W which may result in a fair bit of heat to dissipate, so you might need to put some balast resistors in there, I've used 6R8 50W resistors with lowZ injectors and found that they don't get much over body temperature even after hard running for some time.