440 adding a vapor return line?

thanks for the reply, 850 dp holley.. eddy intake with the heat crossover not blocked under the carb..recently added a return to the tank with the wix filter,,, if my return is working will I have pressuer on the fuel gauge at the carb after I shut it off...and when it does die, there is no pressure on the gauge...I can hold it to the floor it will start and run fine

The Wix WILL relieve pressure on key shutdown. This is a GOOD thing because it prevents pressure build which can force more fuel past the needles/ seats and cause fuel to run over into the manifold.

On the same not what might be happening, is that the fuel in the carb might be boiling and flooding over into the manifold. Use a sandwich heat spacer and run your float levels on the "low" side. Bear in mind that float level can creep so check it a couple of times........HOT