Alright after replacing that hard line no difference was noted. I then attempted to pressurize the fuel system. I clamped the return hose shut and then hand primed it. The only real leak was from the delivery valve holders. I suspect the last person to adjust the timing forgot to replace the washers. Would this be enough to cause this issue? I should also note that the bubbles I see in the line run from the pump to the fuel filter housing as though the leak originates in the IP.