I am cleaning the fuel system because of contamination. I was working on the carburetors and found something I thought was strange. When I blow through the fuel inlet cover on the front carb, ( the one with the fuel pump) it does not flow through free, it acts like there is a restriction in it. The back carb, you can blow through normal. I checked in the cover and there is just a small hole for the fuel to flow through. Is this normal or should they both flow free. There is nothing in the passage, just a small hole where they drilled the passage. Thanks for the help