There is only one way to put your fuel sender into a Sprite tank that will have the sender work. But that doesn’t stop people from getting creative. The unit has to be configured with the arm on the sender running parallel to the car and perpendicular to the tank. In the photo above, you can see the sender installed at 45 degrees, which limits the full swing of the float and limits the travel of the fuel gauge needle. The upward dent on the tank in front of the sender allows the float to swing upward for a full fuel indication. It won’t work if the sender isn’t oriented correctly.
In the photo below, you can just make out the fuel 1/3 up the inside of the plastic float. We have published this many times but still see so many of these in the field that it bears repeating… plastic and ethanol do not mix. Plastic floats are attacked by ethanol, fill with fuel and sink. We have seen this happen in a matter of months. Throw away your plastic float before verify this theory. We sell a nice metal one instead, that should last longer than your car! You can get one by clicking here, and you can find it already paired with a new fuel sender by clicking here.
A younger version of myself had plenty of fuel run into his armpit while rolling by creeper under a Bugeye and bench-pressing a full fuel tank up into position. A lift and a helper make it a lot easier these days. But you still only want to do this stuff once, so best to do it right the first time.