The external fuel pump needs to be vented, so I made this piece to install on the fuel tank. It will go high on the tank on the tunnel, and it won't be seen. I ended up making three; one with a big chamfer, one at 45 degrees, and a tall one. I was at work and didn't bring the barb with me, so wasn't sure what the best shape would be. The one with the big chamfer would not have enough room to be welded onto the tank, and 45 degree one had the barb fouling the frame. The tall one it is. I was going to tig braze it to the tank, but did a test piece with solder and it worked really well, so I will use that.