It didnt go as planned, new motor break in.

PhillH
Spurting fuel cannot possibly be normal. no way, no how.
If you couple that with the filter running dry, it suggests a problem in the fuel system between the filter and the tank. The vent is supposed to allow air into the tank as fuel is being used up. It also lets VAPORS out as the vapor pressure rises in the tank due to fuel warming up, or at time of filling. Liquid fuel should not be coming out of a vent.
Now, a fuel-return line, thats another story.
As to the glass filter, get rid of it. It will be nothing but trouble, perhaps even to the point of causing the premature death of your project.And if its the one I think it is, its sized way wrong for anything but a stock slanty.
However in this case its telling you something. If that filter is on the suction side of the pump,its more than likely indicating air entering the line. It may be entering right at the filter itself, or more likely that little jumper hose back at the tank, under the trunk.If its on the pressure side of the pump, then it goes to air entering on the suction side of the pump only, and that takes us back to that little hose at the back; unless you have other rubber splices or the hard line itself is perforated.Ive seen steel lines perforated just enough to let air in, and seep not enough to puddle under the car, but enough so that you can just see fuel evaporating off the line at the hole.The pump will much rather pull air than fuel.. If you have an electric pusher pump at or near the tank, same story; air entering between it and the pick-up.
Best of luck finding it, and go after it with a vengeance. Gasoline absolutely loves to burn.