about the only thing you could to would be pull the float hangar and replace the level sensor.. I think they are available separately now..
while you're at it, maybe do the Hutch and harpoon mods..
X2.
The Harpoon mod involves cutting off the vent tube,, inside the tank.. allowing you fill the tank without Dribbling in, the last 5 gallons.
The Hutch mod involves re-configuring the fuel pick up/return lines, eliminating a fitting that lets air leak into the fuel (not good).. at less that half full levels. There are ready made kits for this mod.
There are Wiki/DIY's on both mods, here on SDD... for further details.