[3-Serious]

I know I know not another damn HFS-4 thread, but I guess this kit is harder to install than I or my shop thought. Here my problem the I have the howerton twin tank trunk set up with the standard hfs-4 unit it is now completely installed. I am now currently waiting for a tune, and meanwhile have been driving the car with the flow set low and 50/50 meth in the tank. The system sometimes down not turn off when I turn the car off n I hear the pump on at all times (not know of this is normal) and one time when I turned the car off I saw the flow netters jump up n it started injecting with the car off? Id really like to go to a shop who has experiance with my exact kit to take a look over it and possibly tune it.