OK.. I'll dial it back a bit. I did notice that when it's just idling, pressure builds up a bit.. sometimes up to 7 or 8 psi.. but once I give it a few blips of the throttle, it will settle back to 5 or 5.5... then after about 20 seconds of idling, it's creeping back up again... I'll try reducing the pressure some more to see how that works.