Stop in for a cup of coffee

Good morning. So, plan for tonight is disconnect the fuel line at tank and engine and blow compressed air through...or not. If flows air fine, then the thought is plugging my vent line for the tank, putting fuel feed line in a container and pressurizing the fuel tank ever so slightly to see if blockage us in the tank. So close, but so very far away....
Can you siphon fuel at the hose to fuel pump ?