It does have a connector at the bottom of the carb. I assume fuel solenoid? Fuel is being delivered to car- removed fuel line at carb and if was flowing free.
On this new engine it has something on the back of the engine where the fuel line comes from the gas tank it goes into a black part. From that part, a fuel line goes to a fuel filter and then to the carb, then out of another port on that black part another fuel line goes around the back of the engine into a cylindrical piece that is behind the starter. I don't have that on my old engine. It went from the tank, to a fuel filter to the carb.
Model #: 331977-0001-G1
Serial:121227ZD98309