I'm dropping the fuel tank to add a 1/2 inch fuel pick up tube. I'm planning on adding a fuel return tube also. Can I run a return tube, 1/2 inch, down close to the bottom of the tank ? The fitting will be at the top of the tank, with a tube sticking down into the fuel . Can I put it right next to the pickup tube ? What about 2 return tubes, one for the stock return line and one from a bypass regulator ?