65 Barracuda gauge problems

I have been through this battle with my 65 formula s. rebuilt car and much restoration work ongoing to car. When doing the restoration car was on turn style lift upsidedown and went over completly as far a rust and mechanical work. We took off the gas tank, trans, repaired both floor metal units for example. Replaced the gas tank sending unit when replacing it and it when put back together still wants to read empty all the time. I was very dissapointed for sure. It will actually some times move up to half a tank but seems to only do it once and awhile? I was very frustrated with it, but gave up and keep a note pad and write down miles when filling it and keep track to refill gas tank. I also fight the battle with other guages as the speedometer will wiggle all over the place when driving sometimes being close to real speed, but not keeping track so good as it will go up hard when speeding up or slowing down. It can be very frustraiting. I also have a rare rpm guage that is original dealer installed for my Formula S model. It is not hooked up at this time to the now 318 in the car. I plan to redo total electrical system down the road soon probably nex fall/winter with a kit you get as the early a body has a simple system lights, guages, and can be done yourself, I did my 66 cuda many years ago with the same kit. It also goes with the electronic ignition upgrade I currently have installed! It is frustrating as driving at night you have no interior lights on the dash even though all my headlights and tail lights work just fine! I just say dont sweat the small stuff for now and will redo the old wires as they are worn out and fuse set ect a mess! It all is old and needs to be replaced as is typical in such a vehicle. Unless it is a perfect restoration, one should do a restortion to modernality and upgrade. Check here I do not remember the name of the company who sells the kit , but it fits exactly our a body Barracuda's. and simple to put in, with box, wires, ect, few hundred bucks and new car preformance! I am saving now to do it again!

65Cudalover!