I need some fuel sending unit experts please

Swinger 340 said
Dumb Question!!!! Do you have fuel in the tank. Reason I ask this is, the pulsing current from the dash is correct and the float unit works out of the tank (manually operating) and you say your ground is good. If you are relying on the fuel line clip strap as a ground, make sure the clips are not rusted, if so sand or replace. Also make sure the fuel line from the motor has a good ground and does not have a rubber connection be for the pump from the tank. Pump to carb is ok with a rubber line.

Yes, there is gas in the tank. It was just below the level of the sending unit cavity. To be sure I added another 5 gals. Still showed empty. However, as I was driving off the ramps, I noticed some movement in tank level as the gas was sloshing. With probably 10 or so gals in the tank, when sloshing, I get movement up to about the level of the E line. I also ran a wire from neg terminal on battery to sending unit to insure proper ground and no change.

Next question- is the solid state conversion to IVR give more accurate readings than a the 55 year old original one?