Edelbrock 1406 whistling
Yes....the gaskets are in the wrong position.....but it looks like in the pic to ME that that driver's side gasket is not sealing good AT ALL. In that pic where the square flange gasket is against the manifold. Look at the perimeter around that driver's side. there's almost no indention of a seal at all. That's where it's leakin, too, I promise you. It also does not look like it favors one corner or the other. If it was me, I would inspect that side real close. Looks like somethin over there is holding that side of the carburetor off the manifold.