Need advice on installing new fuel line

StrokerScamp said
it will be plum stupid if you continue to use the 5/16 sender. Only X amount of fuel will flow through that 5/16 hole and that ain't gonna change. .

Actually, while I agree that if you're going to the trouble, replacing the sender IS a good idea, the above ain't entirely true. Flow of air or liquids is a rather complicated deal, but FRICTION is a big part of the overall deal, and the fact is, that a short length of smaller tube in a long run of larger tube will not affect flow as much as if the entire run was the smaller size

StrokerScamp said
include a fuel return line. This will keep cool fuel recirculating constantly through the carb. Will cut way down on hot fuel problems. .

This I absolutely agree with. I'm a big fan of vapor return systems. First one I eve saw was factory on my old 70 sixpack RR AND IT WORKED. (I tried removing it after installing an electric pump and instantly found that out)