RE: Savage half tank EXTREME lean problem.
it works because the pressure in the smaller tank stays consistent, the tank in a constant shape.
there is a clunk in the tank, but it don't have enough room to move around much with it standing up. its about a inch and a half wide, the inlet fuel line with clunk is 2 inches long and it is regular fuel line, so its kinda stiff. laying on its side it would probably run upside down, thats how people mount them in planes.
both lines come in side by side, one has the clunk and goes to the bottom, this one goes to your carb. one is cut off and the inside of the cap, its the inlet, hook it to the outlet of the main tank