Success!! Here are some pics of the fabrication to use a stock sending unit to feed 1/2" line to the carb. Don't want to take any chances with starving the motor or surge. We opened up the hole in the flange, carefully, and then silver soldered the 1/2" SS line in place. The flare on the flange worked to our advantage and the solder filled in nicely and came through the back side to assure a good fit. Then the sensor was tacked back in the exact same location. My buddy Rick took it to his shop and did it there. He is an awesome fabricator and this was pretty simple for him. Thanks Rick. Pics are in my photobucket too. Just click on the link in my sig

http://s109.photobucket.com/albums/n66/Mstehle/th_DSC00028.jpg http://s109.photobucket.com/albums/n66/Mstehle/th_DSC00029.jpg http://s109.photobucket.com/albums/n66/Mstehle/th_DSC00030-1.jpg

Here's a pic of the 1/2" pick up that I graphed to my stock unit. The original tube remains, as the return from my bypass regulator, using an elbow and short extension to avoid disturbing the fuel near the sock. The sender/float did not require any relocation.